diff --git a/gulp/dev-config.js b/gulp/dev-config.js
new file mode 100644
index 000000000..b270bf51f
--- /dev/null
+++ b/gulp/dev-config.js
@@ -0,0 +1,69 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const fs = require('fs');
+
+const DEV_CONFIG_FILE = '.moodleapp-dev-config';
+
+/**
+ * Class to read and write dev-config data from a file.
+ */
+class DevConfig {
+
+    constructor() {
+        this.loadFileData();
+    }
+
+    /**
+     * Get a setting.
+     *
+     * @param name Name of the setting to get.
+     * @param defaultValue Value to use if not found.
+     */
+    get(name, defaultValue) {
+        return typeof this.config[name] != 'undefined' ? this.config[name] : defaultValue;
+    }
+
+    /**
+     * Load file data to memory.
+     */
+    loadFileData() {
+        if (!fs.existsSync(DEV_CONFIG_FILE)) {
+            this.config = {};
+
+            return;
+        }
+
+        try {
+            this.config = JSON.parse(fs.readFileSync(DEV_CONFIG_FILE));
+        } catch (error) {
+            console.error('Error reading dev config file.', error);
+            this.config = {};
+        }
+    }
+
+    /**
+     * Save some settings.
+     *
+     * @param settings Object with the settings to save.
+     */
+    save(settings) {
+        this.config = Object.assign(this.config, settings);
+
+        // Save the data in the dev file.
+        fs.writeFileSync(DEV_CONFIG_FILE, JSON.stringify(this.config, null, 4));
+    }
+}
+
+module.exports = new DevConfig();
diff --git a/gulp/git.js b/gulp/git.js
new file mode 100644
index 000000000..f3f66298a
--- /dev/null
+++ b/gulp/git.js
@@ -0,0 +1,237 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const exec = require('child_process').exec;
+const fs = require('fs');
+const DevConfig = require('./dev-config');
+const Utils = require('./utils');
+
+/**
+ * Class to run git commands.
+ */
+class Git {
+
+    /**
+     * Create a patch.
+     *
+     * @param range Show only commits in the specified revision range.
+     * @param saveTo Path to the file to save the patch to. If not defined, the patch contents will be returned.
+     * @return Promise resolved when done. If saveTo not provided, it will return the patch contents.
+     */
+    createPatch(range, saveTo) {
+        return new Promise((resolve, reject) => {
+            exec(`git format-patch ${range} --stdout`, (err, result) => {
+                if (err) {
+                    reject(err || 'Cannot create patch.');
+                    return;
+                }
+
+                if (!saveTo) {
+                    resolve(result);
+                    return;
+                }
+
+                // Save it to a file.
+                const directory = saveTo.substring(0, saveTo.lastIndexOf('/'));
+                if (directory && directory != '.' && directory != '..' && !fs.existsSync(directory)) {
+                    fs.mkdirSync(directory);
+                }
+                fs.writeFileSync(saveTo, result);
+
+                resolve();
+            });
+        });
+    }
+
+    /**
+     * Get current branch.
+     *
+     * @return Promise resolved with the branch name.
+     */
+    getCurrentBranch() {
+        return new Promise((resolve, reject) => {
+            exec('git branch --show-current', (err, branch) => {
+                if (branch) {
+                    resolve(branch.replace('\n', ''));
+                } else {
+                    reject (err || 'Current branch not found.');
+                }
+            });
+        });
+    }
+
+    /**
+     * Get the HEAD commit for a certain branch.
+     *
+     * @param branch Name of the branch.
+     * @param branchData Parsed branch data. If not provided it will be calculated.
+     * @return HEAD commit.
+     */
+    async getHeadCommit(branch, branchData) {
+        if (!branchData) {
+            // Parse the branch to get the project and issue number.
+            branchData = Utils.parseBranch(branch);
+        }
+
+        // Loop over the last commits to find the first commit messages that doesn't belong to the issue.
+        const commitsString = await this.log(50, branch, '%s_____%H');
+        const commits = commitsString.split('\n');
+        commits.pop(); // Remove last element, it's an empty string.
+
+        for (let i = 0; i < commits.length; i++) {
+            const commit = commits[i];
+            const match = Utils.getIssueFromCommitMessage(commit) == branchData.issue;
+
+            if (i === 0 && !match) {
+                // Most recent commit doesn't belong to the issue. Stop looking.
+                break;
+            }
+
+            if (!match) {
+                // The commit does not match any more, we found it!
+                return commit.split('_____')[1];
+            }
+        }
+
+        // Couldn't find the commit using the commit names, get the last commit in the integration branch.
+        const remote = DevConfig.get('upstreamRemote', 'origin');
+        console.log(`Head commit not found using commit messages. Get last commit from ${remote}/integration`);
+        const hashes = await this.hashes(1, `${remote}/integration`);
+
+        return hashes[0];
+    }
+
+    /**
+     * Get the URL of a certain remote.
+     *
+     * @param remote Remote name.
+     * @return Promise resolved with the remote URL.
+     */
+    getRemoteUrl(remote) {
+        return new Promise((resolve, reject) => {
+            exec(`git remote get-url ${remote}`, (err, url) => {
+                if (url) {
+                    resolve(url.replace('\n', ''));
+                } else {
+                    reject (err || 'Remote not found.');
+                }
+            });
+        });
+    }
+
+    /**
+     * Return the latest hashes from git log.
+     *
+     * @param count Number of commits to display.
+     * @param range Show only commits in the specified revision range.
+     * @param format Pretty-print the contents of the commit logs in a given format.
+     * @return Promise resolved with the list of hashes.
+     */
+    async hashes(count, range, format) {
+        format = format || '%H';
+
+        const hashList = await this.log(count, range, format);
+
+        const hashes = hashList.split('\n');
+        hashes.pop(); // Remove last element, it's an empty string.
+
+        return hashes;
+    }
+
+    /**
+     * Calls the log command and returns the raw output.
+     *
+     * @param count Number of commits to display.
+     * @param range Show only commits in the specified revision range.
+     * @param format Pretty-print the contents of the commit logs in a given format.
+     * @param path Show only commits that are enough to explain how the files that match the specified paths came to be.
+     * @return Promise resolved with the result.
+     */
+    log(count, range, format, path) {
+        if (typeof count == 'undefined') {
+            count = 10;
+        }
+
+        let command = 'git log';
+
+        if (count > 0) {
+            command += ` -n ${count} `;
+        }
+        if (format) {
+            command += ` --format=${format} `;
+        }
+        if (range){
+            command += ` ${range} `;
+        }
+        if (path) {
+            command += ` -- ${path}`;
+        }
+
+        return new Promise((resolve, reject) => {
+            exec(command, (err, result, stderr) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(result);
+                }
+            });
+        });
+    }
+
+    /**
+     * Return the latest titles of the commit messages.
+     *
+     * @param count Number of commits to display.
+     * @param range Show only commits in the specified revision range.
+     * @param path Show only commits that are enough to explain how the files that match the specified paths came to be.
+     * @return Promise resolved with the list of titles.
+     */
+    async messages(count, range, path) {
+        count = typeof count != 'undefined' ? count : 10;
+
+        const messageList = await this.log(count, range, '%s', path);
+
+        const messages = messageList.split('\n');
+        messages.pop(); // Remove last element, it's an empty string.
+
+        return messages;
+    }
+
+    /**
+     * Push a branch.
+     *
+     * @param remote Remote to use.
+     * @param branch Branch to push.
+     * @param force Whether to force the push.
+     * @return Promise resolved when done.
+     */
+    push(remote, branch, force) {
+        return new Promise((resolve, reject) => {
+            let command = `git push ${remote} ${branch}`;
+            if (force) {
+                command += ' -f';
+            }
+
+            exec(command, (err, result, stderr) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve();
+                }
+            });
+        });
+    }
+}
+
+module.exports = new Git();
diff --git a/gulp/jira.js b/gulp/jira.js
new file mode 100644
index 000000000..90aeaa1c7
--- /dev/null
+++ b/gulp/jira.js
@@ -0,0 +1,475 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const exec = require('child_process').exec;
+const https = require('https');
+const inquirer = require('inquirer');
+const fs = require('fs');
+const request = require('request'); // This lib is deprecated, but it was the only way I found to make upload files work.
+const DevConfig = require('./dev-config');
+const Git = require('./git');
+const Url = require('./url');
+const Utils = require('./utils');
+
+const apiVersion = 2;
+
+/**
+ * Class to interact with Jira.
+ */
+class Jira {
+
+    /**
+     * Ask the password to the user.
+     *
+     * @return Promise resolved with the password.
+     */
+    async askPassword() {
+        const data = await inquirer.prompt([
+            {
+                type: 'password',
+                name: 'password',
+                message: `Please enter the password for the username ${this.username}.`,
+            },
+        ]);
+
+        return data.password;
+    }
+
+    /**
+     * Ask the user the tracker data.
+     *
+     * @return Promise resolved with the data, rejected if cannot get.
+     */
+    async askTrackerData() {
+        const data = await inquirer.prompt([
+            {
+                type: 'input',
+                name: 'url',
+                message: 'Please enter the tracker URL.',
+                default: 'https://tracker.moodle.org/',
+            },
+            {
+                type: 'input',
+                name: 'username',
+                message: 'Please enter your tracker username.',
+            },
+        ]);
+
+        DevConfig.save({
+            'tracker.url': data.url,
+            'tracker.username': data.username,
+        });
+
+        return data;
+    }
+
+    /**
+     * Build URL to perform requests to Jira.
+     *
+     * @param uri URI to add the the Jira URL.
+     * @return URL.
+     */
+    buildRequestUrl(uri) {
+        return Utils.concatenatePaths([this.url, this.uri, '/rest/api/', apiVersion, uri]);
+    }
+
+    /**
+     * Delete an attachment.
+     *
+     * @param attachmentId Attachment ID.
+     * @return Promise resolved when done.
+     */
+    async deleteAttachment(attachmentId) {
+        const response = await this.request(`attachment/${attachmentId}`, 'DELETE');
+
+        if (response.status != 204) {
+            throw new Error('Could not delete the attachment');
+        }
+    }
+
+    /**
+     * Load the issue info from jira server using a REST API call.
+     *
+     * @param key Key to identify the issue. E.g. MOBILE-1234.
+     * @param fields Fields to get.
+     * @return Promise resolved with the issue data.
+     */
+    async getIssue(key, fields) {
+        fields = fields || '*all,-comment';
+
+        await this.init(); // Initialize data if needed.
+
+        const response = await this.request(`issue/${key}`, 'GET', {'fields': fields, 'expand': 'names'});
+
+        if (response.status == 404) {
+            throw new Error('Issue could not be found.');
+        } else if (response.status != 200) {
+            throw new Error('The tracker is not available.')
+        }
+
+        const issue = response.data;
+        issue.named = {};
+
+        // Populate the named fields in a separate key. Allows us to easily find them without knowing the field ID.
+        const nameList = issue.names || {};
+        for (const fieldKey in issue.fields) {
+            if (nameList[fieldKey]) {
+                issue.named[nameList[fieldKey]] = issue.fields[fieldKey];
+            }
+        }
+
+        return issue
+    }
+
+    /**
+     * Load the version info from the jira server using a rest api call.
+     *
+     * @return Promise resolved when done.
+     */
+    async getServerInfo() {
+        const response = await this.request('serverInfo');
+
+        if (response.status != 200) {
+            throw new Error(`Unexpected response code: ${response.status}`, response);
+        }
+
+        this.version = response.data;
+    }
+
+    /**
+     * Get tracker data to push an issue.
+     *
+     * @return Promise resolved with the data.
+     */
+    async getTrackerData() {
+        // Check dev-config file first.
+        let data = this.getTrackerDataFromDevConfig();
+
+        if (data) {
+            console.log('Using tracker data from dev-config file');
+            return data;
+        }
+
+        // Try to use mdk now.
+        try {
+            data = await this.getTrackerDataFromMdk();
+
+            console.log('Using tracker data from mdk');
+
+            return data;
+        } catch (error) {
+            // MDK not available or not configured. Ask for the data.
+            const data = await this.askTrackerData();
+
+            data.fromInput = true;
+
+            return data;
+        }
+    }
+
+    /**
+     * Get tracker data from dev config file.
+     *
+     * @return Data, undefined if cannot get.
+     */
+    getTrackerDataFromDevConfig() {
+        const url = DevConfig.get('tracker.url');
+        const username = DevConfig.get('tracker.username');
+
+        if (url && username) {
+            return {
+                url,
+                username,
+            };
+        }
+    }
+
+    /**
+     * Get tracker URL and username from mdk.
+     *
+     * @return Promise resolved with the data, rejected if cannot get.
+     */
+    getTrackerDataFromMdk() {
+        return new Promise((resolve, reject) => {
+            exec('mdk config show tracker.url', (err, url) => {
+                if (!url) {
+                    reject(err || 'URL not found.');
+                    return;
+                }
+
+                exec('mdk config show tracker.username', (err, username) => {
+                    if (username) {
+                        resolve({
+                            url: url.replace('\n', ''),
+                            username: username.replace('\n', ''),
+                        });
+                    } else {
+                        reject(err | 'Username not found.');
+                    }
+                });
+            });
+        });
+    }
+
+    /**
+     * Initialize some data.
+     *
+     * @return Promise resolved when done.
+     */
+    async init() {
+        if (this.initialized) {
+            // Already initialized.
+            return;
+        }
+
+        // Get tracker URL and username.
+        const trackerData = await this.getTrackerData();
+
+        this.url = trackerData.url;
+        this.username = trackerData.username;
+
+        const parsed = Url.parse(this.url);
+        this.ssl = parsed.protocol == 'https';
+        this.host = parsed.domain;
+        this.uri = parsed.path;
+
+        // Get the password.
+        const keytar = require('keytar');
+
+        this.password = await keytar.getPassword('mdk-jira-password', this.username); // Use same service name as mdk.
+
+        if (!this.password) {
+            // Ask the user.
+            this.password = await this.askPassword();
+        }
+
+        while (!this.initialized) {
+            try {
+                await this.getServerInfo();
+
+                this.initialized = true;
+                keytar.setPassword('mdk-jira-password', this.username, this.password);
+            } catch (error) {
+                console.log('Error connecting to the server. Please make sure you entered the data correctly.', error);
+                if (trackerData.fromInput) {
+                    // User entered the data manually, ask him again.
+                    trackerData = await this.askTrackerData();
+
+                    this.url = trackerData.url;
+                    this.username = trackerData.username;
+                }
+
+                this.password = await this.askPassword();
+            }
+        }
+    }
+
+    /**
+     * Check if a certain issue could be a security issue.
+     *
+     * @param key Key to identify the issue. E.g. MOBILE-1234.
+     * @return Promise resolved with boolean: whether it's a security issue.
+     */
+    async isSecurityIssue(key) {
+        const issue = await this.getIssue(key, 'security');
+
+        return issue.fields && !!issue.fields.security;
+    }
+
+    /**
+     * Sends a request to the server and returns the data.
+     *
+     * @param uri URI to add the the Jira URL.
+     * @param method Method to use. Defaults to 'GET'.
+     * @param params Params to send as GET params (in the URL).
+     * @param data JSON string with the data to send as POST/PUT params.
+     * @param headers Headers to send.
+     * @return Promise resolved with the result.
+     */
+    request(uri, method, params, data, headers) {
+        uri = uri || '';
+        method = (method || 'GET').toUpperCase();
+        data = data || '';
+        params = params || {};
+        headers = headers || {};
+        headers['Content-Type'] = 'application/json';
+
+        return new Promise((resolve, reject) => {
+
+            // Build the request URL.
+            const url = Url.addParamsToUrl(this.buildRequestUrl(uri), params);
+
+            // Initialize the request.
+            const options = {
+                method: method,
+                auth: `${this.username}:${this.password}`,
+                headers: headers,
+            };
+            const request = https.request(url, options);
+
+            // Add data.
+            if (data) {
+                request.write(data);
+            }
+
+            // Treat response.
+            request.on('response', (response) => {
+                // Read the result.
+                let result = '';
+                response.on('data', (chunk) => {
+                    result += chunk;
+                });
+                response.on('end', () => {
+                    try {
+                        result = JSON.parse(result);
+                    } catch (error) {
+                        // Leave it as text.
+                    }
+
+                    resolve({
+                        status: response.statusCode,
+                        data: result,
+                    });
+                });
+            });
+
+            request.on('error', (e) => {
+                reject(e);
+            });
+
+            // Send the request.
+            request.end();
+        });
+    }
+
+    /**
+     * Sets a set of fields for a certain issue in Jira.
+     *
+     * @param key Key to identify the issue. E.g. MOBILE-1234.
+     * @param updates Object with the fields to update.
+     * @return Promise resolved when done.
+     */
+    async setCustomFields(key, updates) {
+        const issue = await this.getIssue(key);
+        const update = {'fields': {}};
+
+        // Detect which fields have changed.
+        for (const updateName in updates) {
+            const updateValue = updates[updateName];
+            const remoteValue = issue.named[updateName];
+
+            if (!remoteValue || remoteValue != updateValue) {
+                // Map the label of the field with the field code.
+                let fieldKey;
+                for (const key in issue.names) {
+                    if (issue.names[key] == updateName) {
+                        fieldKey = key;
+                        break;
+                    }
+                }
+
+                if (!fieldKey) {
+                    throw new Error(`Could not find the field named ${updateName}.`);
+                }
+
+                update.fields[fieldKey] = updateValue;
+            }
+        }
+
+        if (!Object.keys(update.fields).length) {
+            // No fields to update.
+            console.log('No updates required.')
+            return;
+        }
+
+        const response = await this.request(`issue/${key}`, 'PUT', null, JSON.stringify(update));
+
+        if (response.status != 204) {
+            throw new Error(`Issue was not updated: ${response.status}`, response.data);
+        }
+
+        console.log('Issue updated successfully.');
+    }
+
+    /**
+     * Upload a new attachment to an issue.
+     *
+     * @param key Key to identify the issue. E.g. MOBILE-1234.
+     * @param filePath Path to the file to upload.
+     * @return Promise resolved when done.
+     */
+    async upload(key, filePath) {
+
+        const uri = `issue/${key}/attachments`;
+        const headers = {
+            'X-Atlassian-Token': 'nocheck',
+        }
+
+        const response = await this.uploadFile(uri, 'file', filePath, headers);
+
+        if (response.status != 200) {
+            throw new Error('Could not upload file to Jira issue');
+        }
+
+        console.log('File successfully uploaded.')
+    }
+
+    /**
+     * Upload a file to Jira.
+     *
+     * @param uri URI to add the the Jira URL.
+     * @param fieldName Name of the form field where to put the file.
+     * @param filePath Path to the file.
+     * @param headers Headers.
+     * @return Promise resolved with the result.
+     */
+    async uploadFile(uri, fieldName, filePath, headers) {
+        uri = uri || '';
+        headers = headers || {};
+        headers['Content-Type'] = 'multipart/form-data';
+
+        return new Promise((resolve, reject) => {
+            // Add the file to the form data.
+            const formData = {};
+            formData[fieldName] = {
+                value: fs.createReadStream(filePath),
+                options: {
+                    filename: filePath.substr(filePath.lastIndexOf('/') + 1),
+                    contentType: 'multipart/form-data',
+                },
+            };
+
+            // Perform the request.
+            const options = {
+                url: this.buildRequestUrl(uri),
+                method: 'POST',
+                headers: headers,
+                auth: {
+                    user: this.username,
+                    pass: this.password,
+                },
+                formData: formData,
+            };
+
+            request(options, (err, httpResponse, body) => {
+                resolve({
+                    status: httpResponse.statusCode,
+                    data: body,
+                });
+            });
+        });
+    }
+}
+
+module.exports = new Jira();
diff --git a/gulp/task-build-lang.js b/gulp/task-build-lang.js
new file mode 100644
index 000000000..980bf52a4
--- /dev/null
+++ b/gulp/task-build-lang.js
@@ -0,0 +1,190 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const gulp = require('gulp');
+const slash = require('gulp-slash');
+const clipEmptyFiles = require('gulp-clip-empty-files');
+const through = require('through');
+const bufferFrom = require('buffer-from');
+const File = require('vinyl');
+const pathLib = require('path');
+
+/**
+ * Task to build the language files into a single file per language.
+ */
+class BuildLangTask {
+
+    /**
+     * Copy a property from one object to another, adding a prefix to the key if needed.
+     *
+     * @param target Object to copy the properties to.
+     * @param source Object to copy the properties from.
+     * @param prefix Prefix to add to the keys.
+     */
+    addProperties(target, source, prefix) {
+        for (let property in source) {
+            target[prefix + property] = source[property];
+        }
+    }
+
+    /**
+     * Run the task.
+     *
+     * @param language Language to treat.
+     * @param langPaths Paths to the possible language files.
+     * @param done Function to call when done.
+     */
+    run(language, langPaths, done) {
+        const filename = language + '.json';
+        const data = {};
+        let firstFile = null;
+        const self = this;
+
+        const paths = langPaths.map((path) => {
+            if (path.slice(-1) != '/') {
+                path = path + '/';
+            }
+
+            return path + language + '.json';
+        });
+
+        gulp.src(paths, { allowEmpty: true })
+            .pipe(slash())
+            .pipe(clipEmptyFiles())
+            .pipe(through(function(file) {
+                if (!firstFile) {
+                    firstFile = file;
+                }
+
+                return self.treatFile(file, data);
+            }, function() {
+                /* This implementation is based on gulp-jsoncombine module.
+                 * https://github.com/reflog/gulp-jsoncombine */
+                if (firstFile) {
+                    const joinedPath = pathLib.join(firstFile.base, language + '.json');
+
+                    const joinedFile = new File({
+                        cwd: firstFile.cwd,
+                        base: firstFile.base,
+                        path: joinedPath,
+                        contents: self.treatMergedData(data),
+                    });
+
+                    this.emit('data', joinedFile);
+                }
+
+                this.emit('end');
+            }))
+            .pipe(gulp.dest(pathLib.join('./src/assets', 'lang')))
+            .on('end', done);
+    }
+
+    /**
+     * Treats a file to merge JSONs. This function is based on gulp-jsoncombine module.
+     * https://github.com/reflog/gulp-jsoncombine
+     *
+     * @param file File treated.
+     * @param data Object where to store the data.
+     */
+    treatFile(file, data) {
+        if (file.isNull() || file.isStream()) {
+            return; // ignore
+        }
+
+        try {
+            let path = file.path;
+            let length = 9;
+
+            let srcPos = path.lastIndexOf('/src/app/');
+            if (srcPos < 0) {
+                // It's probably a Windows environment.
+                srcPos = path.lastIndexOf('\\src\\app\\');
+            }
+            if (srcPos < 0) {
+                length = 5;
+                srcPos = path.lastIndexOf('/src/');
+                if (srcPos < 0) {
+                    // It's probably a Windows environment.
+                    srcPos = path.lastIndexOf('\\src\\');
+                }
+            }
+            path = path.substr(srcPos + length);
+
+            data[path] = JSON.parse(file.contents.toString());
+        } catch (err) {
+            console.log('Error parsing JSON: ' + err);
+        }
+    }
+
+    /**
+     * Treats the merged JSON data, adding prefixes depending on the component.
+     *
+     * @param data Merged data.
+     * @return Buffer with the treated data.
+     */
+    treatMergedData(data) {
+        const merged = {};
+        const mergedOrdered = {};
+
+        for (let filepath in data) {
+
+            const pathSplit = filepath.split(/[\/\\]/);
+            let prefix;
+
+            pathSplit.pop();
+
+            switch (pathSplit[0]) {
+                case 'lang':
+                    prefix = 'core';
+                    break;
+                case 'core':
+                    if (pathSplit[1] == 'lang') {
+                        // Not used right now.
+                        prefix = 'core';
+                    } else {
+                        prefix = 'core.' + pathSplit[1];
+                    }
+                    break;
+                case 'addon':
+                    // Remove final item 'lang'.
+                    pathSplit.pop();
+                    // Remove first item 'addon'.
+                    pathSplit.shift();
+
+                    // For subplugins. We'll use plugin_subfolder_subfolder2_...
+                    // E.g. 'mod_assign_feedback_comments'.
+                    prefix = 'addon.' + pathSplit.join('_');
+                    break;
+                case 'assets':
+                    prefix = 'assets.' + pathSplit[1];
+                    break;
+            }
+
+            if (prefix) {
+                this.addProperties(merged, data[filepath], prefix + '.');
+            }
+        }
+
+
+
+        // Force ordering by string key.
+        Object.keys(merged).sort().forEach((key) => {
+            mergedOrdered[key] = merged[key];
+        });
+
+        return bufferFrom(JSON.stringify(mergedOrdered, null, 4));
+    }
+}
+
+module.exports = BuildLangTask;
diff --git a/gulp/task-push.js b/gulp/task-push.js
new file mode 100644
index 000000000..54d151dde
--- /dev/null
+++ b/gulp/task-push.js
@@ -0,0 +1,280 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const gulp = require('gulp');
+const inquirer = require('inquirer');
+const DevConfig = require('./dev-config');
+const Git = require('./git');
+const Jira = require('./jira');
+const Utils = require('./utils');
+
+/**
+ * Task to push a git branch and update tracker issue.
+ */
+class PushTask {
+
+    /**
+     * Ask the user whether he wants to continue.
+     *
+     * @return Promise resolved with boolean: true if he wants to continue.
+     */
+    async askConfirmContinue() {
+        const answer = await inquirer.prompt([
+            {
+                type: 'input',
+                name: 'confirm',
+                message: 'Are you sure you want to continue?',
+                default: 'n',
+            },
+        ]);
+
+        return answer.confirm == 'y';
+    }
+
+    /**
+     * Push a patch to the tracker and remove the previous one.
+     *
+     * @param branch Branch name.
+     * @param branchData Parsed branch data.
+     * @param remote Remote used.
+     * @return Promise resolved when done.
+     */
+    async pushPatch(branch, branchData, remote) {
+        const headCommit = await Git.getHeadCommit(branch, branchData);
+
+        if (!headCommit) {
+            throw new Error('Head commit not resolved, abort pushing patch.');
+        }
+
+        // Create the patch file.
+        const fileName = branch + '.patch';
+        const tmpPatchPath = `./tmp/${fileName}`;
+
+        await Git.createPatch(`${headCommit}...${branch}`, tmpPatchPath);
+        console.log('Git patch created');
+
+        // Check if there is an attachment with same name in the issue.
+        const issue = await Jira.getIssue(branchData.issue, 'attachment');
+
+        let existingAttachmentId;
+        const attachments = (issue.fields && issue.fields.attachment) || [];
+        for (const i in attachments) {
+            if (attachments[i].filename == fileName) {
+                // Found an existing attachment with the same name, we keep track of it.
+                existingAttachmentId = attachments[i].id;
+                break
+            }
+        }
+
+        // Push the patch to the tracker.
+        console.log(`Uploading patch ${fileName} to the tracker...`);
+        await Jira.upload(branchData.issue, tmpPatchPath);
+
+        if (existingAttachmentId) {
+            // On success, deleting file that was there before.
+            try {
+                console.log('Deleting older patch...')
+                await Jira.deleteAttachment(existingAttachmentId);
+            } catch (error) {
+                console.log('Could not delete older attachment.');
+            }
+        }
+    }
+
+    /**
+     * Run the task.
+     *
+     * @param args Command line arguments.
+     * @param done Function to call when done.
+     */
+    async run(args, done) {
+        try {
+            const remote = args.remote || DevConfig.get('upstreamRemote', 'origin');
+            let branch = args.branch;
+            const force = !!args.force;
+
+            if (!branch) {
+                branch = await Git.getCurrentBranch();
+            }
+
+            if (!branch) {
+                throw new Error('Cannot determine the current branch. Please make sure youu aren\'t in detached HEAD state');
+            } else if (branch == 'HEAD') {
+                throw new Error('Cannot push HEAD branch');
+            }
+
+            // Parse the branch to get the project and issue number.
+            const branchData = Utils.parseBranch(branch);
+            const keepRunning = await this.validateCommitMessages(branchData);
+
+            if (!keepRunning) {
+                // Last commit not valid, stop.
+                console.log('Exiting...');
+                done();
+                return;
+            }
+
+            if (!args.patch) {
+                // Check if it's a security issue to force patch mode.
+                try {
+                    args.patch = await Jira.isSecurityIssue(branchData.issue);
+
+                    if (args.patch) {
+                        console.log(`${branchData.issue} appears to be a security issue, switching to patch mode...`);
+                    }
+                } catch (error) {
+                    console.log(`Could not check if ${branchData.issue} is a security issue.`);
+                }
+            }
+
+            if (args.patch) {
+                // Create and upload a patch file.
+                await this.pushPatch(branch, branchData, remote);
+            } else {
+                // Push the branch.
+                console.log(`Pushing branch ${branch} to remote ${remote}...`);
+                await Git.push(remote, branch, force);
+
+                // Update tracker info.
+                console.log(`Branch pushed, update tracker info...`);
+                await this.updateTrackerGitInfo(branch, branchData, remote);
+            }
+        } catch (error) {
+            console.error(error);
+        }
+
+        done();
+    }
+
+    /**
+     * Update git info in the tracker issue.
+     *
+     * @param branch Branch name.
+     * @param branchData Parsed branch data.
+     * @param remote Remote used.
+     * @return Promise resolved when done.
+     */
+    async updateTrackerGitInfo(branch, branchData, remote) {
+        // Get the repository data for the project.
+        let repositoryUrl = DevConfig.get(branchData.project + '.repositoryUrl');
+        let diffUrlTemplate = DevConfig.get(branchData.project + '.diffUrlTemplate', '');
+
+        if (!repositoryUrl) {
+            // Calculate the repositoryUrl based on the remote URL.
+            repositoryUrl = await Git.getRemoteUrl(remote);
+        }
+
+        // Make sure the repository URL uses the regular format.
+        repositoryUrl = repositoryUrl.replace(/^(git@|git:\/\/)/, 'https://')
+                                     .replace(/\.git$/, '')
+                                     .replace('github.com:', 'github.com/');
+
+        if (!diffUrlTemplate) {
+            diffUrlTemplate = Utils.concatenatePaths([repositoryUrl, 'compare/%headcommit%...%branch%']);
+        }
+
+        // Now create the git URL for the repository.
+        const repositoryGitUrl = repositoryUrl.replace(/^https?:\/\//, 'git://') + '.git';
+
+        // Search HEAD commit to put in the diff URL.
+        console.log ('Searching for head commit...');
+        let headCommit = await Git.getHeadCommit(branch, branchData);
+
+        if (!headCommit) {
+            throw new Error('Head commit not resolved, aborting update of tracker fields');
+        }
+
+        headCommit = headCommit.substr(0, 10);
+        console.log(`Head commit resolved to ${headCommit}`);
+
+        // Calculate last properties needed.
+        const diffUrl = diffUrlTemplate.replace('%branch%', branch).replace('%headcommit%', headCommit);
+        const fieldRepositoryUrl = DevConfig.get('tracker.fieldnames.repositoryurl', 'Pull  from Repository');
+        const fieldBranch = DevConfig.get('tracker.fieldnames.branch', 'Pull Master Branch');
+        const fieldDiffUrl = DevConfig.get('tracker.fieldnames.diffurl', 'Pull Master Diff URL');
+
+        // Update tracker fields.
+        const updates = {};
+        updates[fieldRepositoryUrl] = repositoryGitUrl;
+        updates[fieldBranch] = branch;
+        updates[fieldDiffUrl] = diffUrl;
+
+        console.log('Setting tracker fields...');
+        await Jira.setCustomFields(branchData.issue, updates);
+    }
+
+    /**
+     * Validate commit messages comparing them with the branch name.
+     *
+     * @param branchData Parsed branch data.
+     * @return True if value is ok or the user wants to continue anyway, false to stop.
+     */
+    async validateCommitMessages(branchData) {
+        const messages = await Git.messages(30);
+
+        let numConsecutive = 0;
+        let wrongCommitCandidate = null;
+
+        for (let i = 0; i < messages.length; i++) {
+            const message = messages[i];
+            const issue = Utils.getIssueFromCommitMessage(message);
+
+            if (!issue || issue != branchData.issue) {
+                if (i === 0) {
+                    // Last commit is wrong, it shouldn't happen. Ask the user if he wants to continue.
+                    if (!issue) {
+                        console.log('The issue number could not be found in the last commit message.');
+                        console.log(`Commit: ${message}`);
+                    } else if (issue != branchData.issue) {
+                        console.log('The issue number in the last commit does not match the branch being pushed to.');
+                        console.log(`Branch: ${branchData.issue} vs. commit: ${issue}`);
+                    }
+
+                    return this.askConfirmContinue();
+                }
+
+                numConsecutive++;
+                if (numConsecutive > 2) {
+                    // 3 consecutive commits with different branch, probably the branch commits are over. Everything OK.
+                    return true;
+
+                // Don't treat a merge pull request commit as a wrong commit between right commits.
+                // The current push could be a quick fix after a merge.
+                } else if (!wrongCommitCandidate && message.indexOf('Merge pull request') == -1) {
+                    wrongCommitCandidate = {
+                        message: message,
+                        issue: issue,
+                        index: i,
+                    };
+                }
+            } else if (wrongCommitCandidate) {
+                // We've found a commit with the branch name after a commit with a different branch. Probably wrong commit.
+                if (!wrongCommitCandidate.issue) {
+                    console.log('The issue number could not be found in one of the commit messages.');
+                    console.log(`Commit: ${wrongCommitCandidate.message}`);
+                } else {
+                    console.log('The issue number in a certain commit does not match the branch being pushed to.');
+                    console.log(`Branch: ${branchData.issue} vs. commit: ${wrongCommitCandidate.issue}`);
+                    console.log(`Commit message: ${wrongCommitCandidate.message}`);
+                }
+
+                return this.askConfirmContinue();
+            }
+        }
+
+        return true;
+    }
+}
+
+module.exports = PushTask;
diff --git a/gulp/url.js b/gulp/url.js
new file mode 100644
index 000000000..8b46409f6
--- /dev/null
+++ b/gulp/url.js
@@ -0,0 +1,79 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * Class with helper functions for urls.
+ */
+class Url {
+
+    /**
+     * Add params to a URL.
+     *
+     * @param url URL to add the params to.
+     * @param params Object with the params to add.
+     * @return URL with params.
+     */
+    static addParamsToUrl(url, params) {
+        let separator = url.indexOf('?') != -1 ? '&' : '?';
+
+        for (const key in params) {
+            let value = params[key];
+
+            // Ignore objects.
+            if (typeof value != 'object') {
+                url += separator + key + '=' + value;
+                separator = '&';
+            }
+        }
+
+        return url;
+    }
+
+    /**
+     * Parse parts of a url, using an implicit protocol if it is missing from the url.
+     *
+     * @param url Url.
+     * @return Url parts.
+     */
+    static parse(url) {
+        // Parse url with regular expression taken from RFC 3986: https://tools.ietf.org/html/rfc3986#appendix-B.
+        const match = url.trim().match(/^(([^:/?#]+):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/);
+
+        if (!match) {
+            return null;
+        }
+
+        const host = match[4] || '';
+
+        // Get the credentials and the port from the host.
+        const [domainAndPort, credentials] = host.split('@').reverse();
+        const [domain, port] = domainAndPort.split(':');
+        const [username, password] = credentials ? credentials.split(':') : [];
+
+        // Prepare parts replacing empty strings with undefined.
+        return {
+            protocol: match[2] || undefined,
+            domain: domain || undefined,
+            port: port || undefined,
+            credentials: credentials || undefined,
+            username: username || undefined,
+            password: password || undefined,
+            path: match[5] || undefined,
+            query: match[7] || undefined,
+            fragment: match[9] || undefined,
+        };
+    }
+}
+
+module.exports = Url;
diff --git a/gulp/utils.js b/gulp/utils.js
new file mode 100644
index 000000000..0ca11fa74
--- /dev/null
+++ b/gulp/utils.js
@@ -0,0 +1,119 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const DevConfig = require('./dev-config');
+const DEFAULT_ISSUE_REGEX = '^(MOBILE)[-_]([0-9]+)';
+
+/**
+ * Class with some utility functions.
+ */
+class Utils {
+    /**
+     * Concatenate several paths, adding a slash between them if needed.
+     *
+     * @param paths List of paths.
+     * @return Concatenated path.
+     */
+    static concatenatePaths(paths) {
+        if (!paths.length) {
+            return '';
+        }
+
+        // Remove all slashes between paths.
+        for (let i = 0; i < paths.length; i++) {
+            if (!paths[i]) {
+                continue;
+            }
+
+            if (i === 0) {
+                paths[i] = String(paths[i]).replace(/\/+$/g, '');
+            } else if (i === paths.length - 1) {
+                paths[i] = String(paths[i]).replace(/^\/+/g, '');
+            } else {
+                paths[i] = String(paths[i]).replace(/^\/+|\/+$/g, '');
+            }
+        }
+
+        // Remove empty paths.
+        paths = paths.filter(path => !!path);
+
+        return paths.join('/');
+    }
+
+    /**
+     * Get command line arguments.
+     *
+     * @return Object with command line arguments.
+     */
+    static getCommandLineArguments() {
+
+        let args = {}, opt, thisOpt, curOpt;
+        for (let a = 0; a < process.argv.length; a++) {
+
+            thisOpt = process.argv[a].trim();
+            opt = thisOpt.replace(/^\-+/, '');
+
+            if (opt === thisOpt) {
+                // argument value
+                if (curOpt) {
+                    args[curOpt] = opt;
+                }
+                curOpt = null;
+            }
+            else {
+                // Argument name.
+                curOpt = opt;
+                args[curOpt] = true;
+            }
+        }
+
+        return args;
+    }
+
+    /**
+     * Given a commit message, return the issue name (e.g. MOBILE-1234).
+     *
+     * @param commit Commit message.
+     * @return Issue name.
+     */
+    static getIssueFromCommitMessage(commit) {
+        const regex = new RegExp(DevConfig.get('wording.branchRegex', DEFAULT_ISSUE_REGEX), 'i');
+        const matches = commit.match(regex);
+
+        return matches && matches[0];
+    }
+
+    /**
+     * Parse a branch name to extract some data.
+     *
+     * @param branch Branch name to parse.
+     * @return Data.
+     */
+    static parseBranch(branch) {
+        const regex = new RegExp(DevConfig.get('wording.branchRegex', DEFAULT_ISSUE_REGEX), 'i');
+
+        const matches = branch.match(regex);
+        if (!matches || matches.length < 3) {
+            throw new Error(`Error parsing branch ${branch}`);
+        }
+
+        return {
+            issue: matches[0],
+            project: matches[1],
+            issueNumber: matches[2],
+        };
+    }
+}
+
+module.exports = Utils;
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 000000000..7a08d6c88
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,48 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const BuildLangTask = require('./gulp/task-build-lang');
+const PushTask = require('./gulp/task-push');
+const Utils = require('./gulp/utils');
+const gulp = require('gulp');
+
+const paths = {
+    lang: [
+        './src/app/lang/',
+        './src/app/core/**/lang/',
+        './src/app/addon/**/lang/',
+        './src/app/**/**/lang/',
+        './src/assets/countries/',
+        './src/assets/mimetypes/'
+    ]
+};
+
+const args = Utils.getCommandLineArguments();
+
+// Build the language files into a single file per language.
+gulp.task('lang', (done) => {
+    new BuildLangTask().run('en', paths.lang, done);
+});
+
+gulp.task('push', (done) => {
+    new PushTask().run(args, done);
+});
+
+gulp.task('default', gulp.parallel('lang'));
+
+gulp.task('watch', () => {
+    const langsPaths = paths.lang.map(path => path + 'en.json');
+
+    gulp.watch(langsPaths, { interval: 500 }, gulp.parallel('lang'));
+});
diff --git a/package.json b/package.json
index 80b676724..72bd72e26 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,8 @@
     "test:ci": "jest -ci --runInBand --verbose",
     "test:watch": "jest --watch",
     "test:coverage": "jest --coverage",
-    "lint": "ng lint"
+    "lint": "ng lint",
+    "ionic:serve:before": "npx gulp"
   },
   "dependencies": {
     "@angular/common": "~10.0.0",
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index dde487788..48afedd0e 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -12,11 +12,40 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component } from '@angular/core';
+import { Component, OnInit } from '@angular/core';
+import { CoreLangProvider } from '@services/lang';
+import { CoreEvents, CoreEventsProvider } from '@services/events';
 
 @Component({
     selector: 'app-root',
     templateUrl: 'app.component.html',
     styleUrls: ['app.component.scss'],
 })
-export class AppComponent { }
+export class AppComponent implements OnInit {
+
+    constructor(
+        private langProvider: CoreLangProvider,
+    ) {
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        CoreEvents.instance.on(CoreEventsProvider.LOGOUT, () => {
+            // Go to sites page when user is logged out.
+            // Due to DeepLinker, we need to use the ViewCtrl instead of name.
+            // Otherwise some pages are re-created when they shouldn't.
+            // TODO
+            // CoreApp.instance.getRootNavController().setRoot(CoreLoginSitesPage);
+
+            // Unload lang custom strings.
+            this.langProvider.clearCustomStrings();
+
+            // Remove version classes from body.
+            // TODO
+            // this.removeVersionClass();
+        });
+    }
+
+}
diff --git a/src/app/core/login/lang/en.json b/src/app/core/login/lang/en.json
new file mode 100644
index 000000000..e776074e5
--- /dev/null
+++ b/src/app/core/login/lang/en.json
@@ -0,0 +1,3 @@
+{
+    "yourenteredsite": "Connect to your site"
+}
diff --git a/src/app/core/login/login.module.ts b/src/app/core/login/login.module.ts
index 74707b4fb..39ba3ce72 100644
--- a/src/app/core/login/login.module.ts
+++ b/src/app/core/login/login.module.ts
@@ -16,17 +16,18 @@ import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
 
 import { IonicModule } from '@ionic/angular';
+import { TranslateModule } from '@ngx-translate/core';
 
 import { CoreLoginRoutingModule } from './login-routing.module';
 import { CoreLoginInitPage } from './pages/init/init.page';
 import { CoreLoginSitePage } from './pages/site/site.page';
 
-
 @NgModule({
     imports: [
         CommonModule,
         IonicModule,
         CoreLoginRoutingModule,
+        TranslateModule.forChild(),
     ],
     declarations: [
         CoreLoginInitPage,
diff --git a/src/app/core/login/pages/site/site.html b/src/app/core/login/pages/site/site.html
index 49d7a9823..e2beae84f 100644
--- a/src/app/core/login/pages/site/site.html
+++ b/src/app/core/login/pages/site/site.html
@@ -1,3 +1,3 @@
 <ion-content>
-    Site page.
+    {{ 'core.login.yourenteredsite' | translate }}
 </ion-content>
diff --git a/src/app/services/lang.ts b/src/app/services/lang.ts
index 5a763614d..dc405bd31 100644
--- a/src/app/services/lang.ts
+++ b/src/app/services/lang.ts
@@ -246,7 +246,7 @@ export class CoreLangProvider {
     protected async detectLanguage(): Promise<string> {
         // Get current language from config (user might have changed it).
         try {
-            return CoreConfig.instance.get<string>('current_language');
+            return await CoreConfig.instance.get<string>('current_language');
         } catch (e) {
             // Try will return, ignore errors here to avoid nesting.
         }
diff --git a/src/assets/countries/en.json b/src/assets/countries/en.json
new file mode 100644
index 000000000..777763e84
--- /dev/null
+++ b/src/assets/countries/en.json
@@ -0,0 +1,251 @@
+{
+    "AD": "Andorra",
+    "AE": "United Arab Emirates",
+    "AF": "Afghanistan",
+    "AG": "Antigua and Barbuda",
+    "AI": "Anguilla",
+    "AL": "Albania",
+    "AM": "Armenia",
+    "AO": "Angola",
+    "AQ": "Antarctica",
+    "AR": "Argentina",
+    "AS": "American Samoa",
+    "AT": "Austria",
+    "AU": "Australia",
+    "AW": "Aruba",
+    "AX": "Åland Islands",
+    "AZ": "Azerbaijan",
+    "BA": "Bosnia and Herzegovina",
+    "BB": "Barbados",
+    "BD": "Bangladesh",
+    "BE": "Belgium",
+    "BF": "Burkina Faso",
+    "BG": "Bulgaria",
+    "BH": "Bahrain",
+    "BI": "Burundi",
+    "BJ": "Benin",
+    "BL": "Saint Barthélemy",
+    "BM": "Bermuda",
+    "BN": "Brunei Darussalam",
+    "BO": "Bolivia (Plurinational State of)",
+    "BQ": "Bonaire, Sint Eustatius and Saba",
+    "BR": "Brazil",
+    "BS": "Bahamas",
+    "BT": "Bhutan",
+    "BV": "Bouvet Island",
+    "BW": "Botswana",
+    "BY": "Belarus",
+    "BZ": "Belize",
+    "CA": "Canada",
+    "CC": "Cocos (Keeling) Islands",
+    "CD": "Congo (the Democratic Republic of the)",
+    "CF": "Central African Republic",
+    "CG": "Congo",
+    "CH": "Switzerland",
+    "CI": "Côte d'Ivoire",
+    "CK": "Cook Islands",
+    "CL": "Chile",
+    "CM": "Cameroon",
+    "CN": "China",
+    "CO": "Colombia",
+    "CR": "Costa Rica",
+    "CU": "Cuba",
+    "CV": "Cabo Verde",
+    "CW": "Curaçao",
+    "CX": "Christmas Island",
+    "CY": "Cyprus",
+    "CZ": "Czechia",
+    "DE": "Germany",
+    "DJ": "Djibouti",
+    "DK": "Denmark",
+    "DM": "Dominica",
+    "DO": "Dominican Republic",
+    "DZ": "Algeria",
+    "EC": "Ecuador",
+    "EE": "Estonia",
+    "EG": "Egypt",
+    "EH": "Western Sahara",
+    "ER": "Eritrea",
+    "ES": "Spain",
+    "ET": "Ethiopia",
+    "FI": "Finland",
+    "FJ": "Fiji",
+    "FK": "Falkland Islands (Malvinas)",
+    "FM": "Micronesia (Federated States of)",
+    "FO": "Faroe Islands",
+    "FR": "France",
+    "GA": "Gabon",
+    "GB": "United Kingdom",
+    "GD": "Grenada",
+    "GE": "Georgia",
+    "GF": "French Guiana",
+    "GG": "Guernsey",
+    "GH": "Ghana",
+    "GI": "Gibraltar",
+    "GL": "Greenland",
+    "GM": "Gambia",
+    "GN": "Guinea",
+    "GP": "Guadeloupe",
+    "GQ": "Equatorial Guinea",
+    "GR": "Greece",
+    "GS": "South Georgia and the South Sandwich Islands",
+    "GT": "Guatemala",
+    "GU": "Guam",
+    "GW": "Guinea-Bissau",
+    "GY": "Guyana",
+    "HK": "Hong Kong",
+    "HM": "Heard Island and McDonald Islands",
+    "HN": "Honduras",
+    "HR": "Croatia",
+    "HT": "Haiti",
+    "HU": "Hungary",
+    "ID": "Indonesia",
+    "IE": "Ireland",
+    "IL": "Israel",
+    "IM": "Isle of Man",
+    "IN": "India",
+    "IO": "British Indian Ocean Territory",
+    "IQ": "Iraq",
+    "IR": "Iran (Islamic Republic of)",
+    "IS": "Iceland",
+    "IT": "Italy",
+    "JE": "Jersey",
+    "JM": "Jamaica",
+    "JO": "Jordan",
+    "JP": "Japan",
+    "KE": "Kenya",
+    "KG": "Kyrgyzstan",
+    "KH": "Cambodia",
+    "KI": "Kiribati",
+    "KM": "Comoros",
+    "KN": "Saint Kitts and Nevis",
+    "KP": "Korea (the Democratic People's Republic of)",
+    "KR": "Korea (the Republic of)",
+    "KW": "Kuwait",
+    "KY": "Cayman Islands",
+    "KZ": "Kazakhstan",
+    "LA": "Lao People's Democratic Republic",
+    "LB": "Lebanon",
+    "LC": "Saint Lucia",
+    "LI": "Liechtenstein",
+    "LK": "Sri Lanka",
+    "LR": "Liberia",
+    "LS": "Lesotho",
+    "LT": "Lithuania",
+    "LU": "Luxembourg",
+    "LV": "Latvia",
+    "LY": "Libya",
+    "MA": "Morocco",
+    "MC": "Monaco",
+    "MD": "Moldova (the Republic of)",
+    "ME": "Montenegro",
+    "MF": "Saint Martin (French part)",
+    "MG": "Madagascar",
+    "MH": "Marshall Islands",
+    "MK": "North Macedonia",
+    "ML": "Mali",
+    "MM": "Myanmar",
+    "MN": "Mongolia",
+    "MO": "Macao",
+    "MP": "Northern Mariana Islands",
+    "MQ": "Martinique",
+    "MR": "Mauritania",
+    "MS": "Montserrat",
+    "MT": "Malta",
+    "MU": "Mauritius",
+    "MV": "Maldives",
+    "MW": "Malawi",
+    "MX": "Mexico",
+    "MY": "Malaysia",
+    "MZ": "Mozambique",
+    "NA": "Namibia",
+    "NC": "New Caledonia",
+    "NE": "Niger",
+    "NF": "Norfolk Island",
+    "NG": "Nigeria",
+    "NI": "Nicaragua",
+    "NL": "Netherlands",
+    "NO": "Norway",
+    "NP": "Nepal",
+    "NR": "Nauru",
+    "NU": "Niue",
+    "NZ": "New Zealand",
+    "OM": "Oman",
+    "PA": "Panama",
+    "PE": "Peru",
+    "PF": "French Polynesia",
+    "PG": "Papua New Guinea",
+    "PH": "Philippines",
+    "PK": "Pakistan",
+    "PL": "Poland",
+    "PM": "Saint Pierre and Miquelon",
+    "PN": "Pitcairn",
+    "PR": "Puerto Rico",
+    "PS": "Palestine, State of",
+    "PT": "Portugal",
+    "PW": "Palau",
+    "PY": "Paraguay",
+    "QA": "Qatar",
+    "RE": "Réunion",
+    "RO": "Romania",
+    "RS": "Serbia",
+    "RU": "Russian Federation",
+    "RW": "Rwanda",
+    "SA": "Saudi Arabia",
+    "SB": "Solomon Islands",
+    "SC": "Seychelles",
+    "SD": "Sudan",
+    "SE": "Sweden",
+    "SG": "Singapore",
+    "SH": "Saint Helena, Ascension and Tristan da Cunha",
+    "SI": "Slovenia",
+    "SJ": "Svalbard and Jan Mayen",
+    "SK": "Slovakia",
+    "SL": "Sierra Leone",
+    "SM": "San Marino",
+    "SN": "Senegal",
+    "SO": "Somalia",
+    "SR": "Suriname",
+    "SS": "South Sudan",
+    "ST": "Sao Tome and Principe",
+    "SV": "El Salvador",
+    "SX": "Sint Maarten (Dutch part)",
+    "SY": "Syrian Arab Republic",
+    "SZ": "Eswatini",
+    "TC": "Turks and Caicos Islands",
+    "TD": "Chad",
+    "TF": "French Southern Territories",
+    "TG": "Togo",
+    "TH": "Thailand",
+    "TJ": "Tajikistan",
+    "TK": "Tokelau",
+    "TL": "Timor-Leste",
+    "TM": "Turkmenistan",
+    "TN": "Tunisia",
+    "TO": "Tonga",
+    "TR": "Turkey",
+    "TT": "Trinidad and Tobago",
+    "TV": "Tuvalu",
+    "TW": "Taiwan",
+    "TZ": "Tanzania, the United Republic of",
+    "UA": "Ukraine",
+    "UG": "Uganda",
+    "UM": "United States Minor Outlying Islands",
+    "US": "United States",
+    "UY": "Uruguay",
+    "UZ": "Uzbekistan",
+    "VA": "Holy See",
+    "VC": "Saint Vincent and the Grenadines",
+    "VE": "Venezuela (Bolivarian Republic of)",
+    "VG": "Virgin Islands (British)",
+    "VI": "Virgin Islands (U.S.)",
+    "VN": "Viet Nam",
+    "VU": "Vanuatu",
+    "WF": "Wallis and Futuna",
+    "WS": "Samoa",
+    "YE": "Yemen",
+    "YT": "Mayotte",
+    "ZA": "South Africa",
+    "ZM": "Zambia",
+    "ZW": "Zimbabwe"
+}
\ No newline at end of file
diff --git a/src/assets/lang/en.json b/src/assets/lang/en.json
new file mode 100644
index 000000000..5ada0eb7d
--- /dev/null
+++ b/src/assets/lang/en.json
@@ -0,0 +1,304 @@
+{
+    "assets.countries.AD": "Andorra",
+    "assets.countries.AE": "United Arab Emirates",
+    "assets.countries.AF": "Afghanistan",
+    "assets.countries.AG": "Antigua and Barbuda",
+    "assets.countries.AI": "Anguilla",
+    "assets.countries.AL": "Albania",
+    "assets.countries.AM": "Armenia",
+    "assets.countries.AO": "Angola",
+    "assets.countries.AQ": "Antarctica",
+    "assets.countries.AR": "Argentina",
+    "assets.countries.AS": "American Samoa",
+    "assets.countries.AT": "Austria",
+    "assets.countries.AU": "Australia",
+    "assets.countries.AW": "Aruba",
+    "assets.countries.AX": "Åland Islands",
+    "assets.countries.AZ": "Azerbaijan",
+    "assets.countries.BA": "Bosnia and Herzegovina",
+    "assets.countries.BB": "Barbados",
+    "assets.countries.BD": "Bangladesh",
+    "assets.countries.BE": "Belgium",
+    "assets.countries.BF": "Burkina Faso",
+    "assets.countries.BG": "Bulgaria",
+    "assets.countries.BH": "Bahrain",
+    "assets.countries.BI": "Burundi",
+    "assets.countries.BJ": "Benin",
+    "assets.countries.BL": "Saint Barthélemy",
+    "assets.countries.BM": "Bermuda",
+    "assets.countries.BN": "Brunei Darussalam",
+    "assets.countries.BO": "Bolivia (Plurinational State of)",
+    "assets.countries.BQ": "Bonaire, Sint Eustatius and Saba",
+    "assets.countries.BR": "Brazil",
+    "assets.countries.BS": "Bahamas",
+    "assets.countries.BT": "Bhutan",
+    "assets.countries.BV": "Bouvet Island",
+    "assets.countries.BW": "Botswana",
+    "assets.countries.BY": "Belarus",
+    "assets.countries.BZ": "Belize",
+    "assets.countries.CA": "Canada",
+    "assets.countries.CC": "Cocos (Keeling) Islands",
+    "assets.countries.CD": "Congo (the Democratic Republic of the)",
+    "assets.countries.CF": "Central African Republic",
+    "assets.countries.CG": "Congo",
+    "assets.countries.CH": "Switzerland",
+    "assets.countries.CI": "Côte d'Ivoire",
+    "assets.countries.CK": "Cook Islands",
+    "assets.countries.CL": "Chile",
+    "assets.countries.CM": "Cameroon",
+    "assets.countries.CN": "China",
+    "assets.countries.CO": "Colombia",
+    "assets.countries.CR": "Costa Rica",
+    "assets.countries.CU": "Cuba",
+    "assets.countries.CV": "Cabo Verde",
+    "assets.countries.CW": "Curaçao",
+    "assets.countries.CX": "Christmas Island",
+    "assets.countries.CY": "Cyprus",
+    "assets.countries.CZ": "Czechia",
+    "assets.countries.DE": "Germany",
+    "assets.countries.DJ": "Djibouti",
+    "assets.countries.DK": "Denmark",
+    "assets.countries.DM": "Dominica",
+    "assets.countries.DO": "Dominican Republic",
+    "assets.countries.DZ": "Algeria",
+    "assets.countries.EC": "Ecuador",
+    "assets.countries.EE": "Estonia",
+    "assets.countries.EG": "Egypt",
+    "assets.countries.EH": "Western Sahara",
+    "assets.countries.ER": "Eritrea",
+    "assets.countries.ES": "Spain",
+    "assets.countries.ET": "Ethiopia",
+    "assets.countries.FI": "Finland",
+    "assets.countries.FJ": "Fiji",
+    "assets.countries.FK": "Falkland Islands (Malvinas)",
+    "assets.countries.FM": "Micronesia (Federated States of)",
+    "assets.countries.FO": "Faroe Islands",
+    "assets.countries.FR": "France",
+    "assets.countries.GA": "Gabon",
+    "assets.countries.GB": "United Kingdom",
+    "assets.countries.GD": "Grenada",
+    "assets.countries.GE": "Georgia",
+    "assets.countries.GF": "French Guiana",
+    "assets.countries.GG": "Guernsey",
+    "assets.countries.GH": "Ghana",
+    "assets.countries.GI": "Gibraltar",
+    "assets.countries.GL": "Greenland",
+    "assets.countries.GM": "Gambia",
+    "assets.countries.GN": "Guinea",
+    "assets.countries.GP": "Guadeloupe",
+    "assets.countries.GQ": "Equatorial Guinea",
+    "assets.countries.GR": "Greece",
+    "assets.countries.GS": "South Georgia and the South Sandwich Islands",
+    "assets.countries.GT": "Guatemala",
+    "assets.countries.GU": "Guam",
+    "assets.countries.GW": "Guinea-Bissau",
+    "assets.countries.GY": "Guyana",
+    "assets.countries.HK": "Hong Kong",
+    "assets.countries.HM": "Heard Island and McDonald Islands",
+    "assets.countries.HN": "Honduras",
+    "assets.countries.HR": "Croatia",
+    "assets.countries.HT": "Haiti",
+    "assets.countries.HU": "Hungary",
+    "assets.countries.ID": "Indonesia",
+    "assets.countries.IE": "Ireland",
+    "assets.countries.IL": "Israel",
+    "assets.countries.IM": "Isle of Man",
+    "assets.countries.IN": "India",
+    "assets.countries.IO": "British Indian Ocean Territory",
+    "assets.countries.IQ": "Iraq",
+    "assets.countries.IR": "Iran (Islamic Republic of)",
+    "assets.countries.IS": "Iceland",
+    "assets.countries.IT": "Italy",
+    "assets.countries.JE": "Jersey",
+    "assets.countries.JM": "Jamaica",
+    "assets.countries.JO": "Jordan",
+    "assets.countries.JP": "Japan",
+    "assets.countries.KE": "Kenya",
+    "assets.countries.KG": "Kyrgyzstan",
+    "assets.countries.KH": "Cambodia",
+    "assets.countries.KI": "Kiribati",
+    "assets.countries.KM": "Comoros",
+    "assets.countries.KN": "Saint Kitts and Nevis",
+    "assets.countries.KP": "Korea (the Democratic People's Republic of)",
+    "assets.countries.KR": "Korea (the Republic of)",
+    "assets.countries.KW": "Kuwait",
+    "assets.countries.KY": "Cayman Islands",
+    "assets.countries.KZ": "Kazakhstan",
+    "assets.countries.LA": "Lao People's Democratic Republic",
+    "assets.countries.LB": "Lebanon",
+    "assets.countries.LC": "Saint Lucia",
+    "assets.countries.LI": "Liechtenstein",
+    "assets.countries.LK": "Sri Lanka",
+    "assets.countries.LR": "Liberia",
+    "assets.countries.LS": "Lesotho",
+    "assets.countries.LT": "Lithuania",
+    "assets.countries.LU": "Luxembourg",
+    "assets.countries.LV": "Latvia",
+    "assets.countries.LY": "Libya",
+    "assets.countries.MA": "Morocco",
+    "assets.countries.MC": "Monaco",
+    "assets.countries.MD": "Moldova (the Republic of)",
+    "assets.countries.ME": "Montenegro",
+    "assets.countries.MF": "Saint Martin (French part)",
+    "assets.countries.MG": "Madagascar",
+    "assets.countries.MH": "Marshall Islands",
+    "assets.countries.MK": "North Macedonia",
+    "assets.countries.ML": "Mali",
+    "assets.countries.MM": "Myanmar",
+    "assets.countries.MN": "Mongolia",
+    "assets.countries.MO": "Macao",
+    "assets.countries.MP": "Northern Mariana Islands",
+    "assets.countries.MQ": "Martinique",
+    "assets.countries.MR": "Mauritania",
+    "assets.countries.MS": "Montserrat",
+    "assets.countries.MT": "Malta",
+    "assets.countries.MU": "Mauritius",
+    "assets.countries.MV": "Maldives",
+    "assets.countries.MW": "Malawi",
+    "assets.countries.MX": "Mexico",
+    "assets.countries.MY": "Malaysia",
+    "assets.countries.MZ": "Mozambique",
+    "assets.countries.NA": "Namibia",
+    "assets.countries.NC": "New Caledonia",
+    "assets.countries.NE": "Niger",
+    "assets.countries.NF": "Norfolk Island",
+    "assets.countries.NG": "Nigeria",
+    "assets.countries.NI": "Nicaragua",
+    "assets.countries.NL": "Netherlands",
+    "assets.countries.NO": "Norway",
+    "assets.countries.NP": "Nepal",
+    "assets.countries.NR": "Nauru",
+    "assets.countries.NU": "Niue",
+    "assets.countries.NZ": "New Zealand",
+    "assets.countries.OM": "Oman",
+    "assets.countries.PA": "Panama",
+    "assets.countries.PE": "Peru",
+    "assets.countries.PF": "French Polynesia",
+    "assets.countries.PG": "Papua New Guinea",
+    "assets.countries.PH": "Philippines",
+    "assets.countries.PK": "Pakistan",
+    "assets.countries.PL": "Poland",
+    "assets.countries.PM": "Saint Pierre and Miquelon",
+    "assets.countries.PN": "Pitcairn",
+    "assets.countries.PR": "Puerto Rico",
+    "assets.countries.PS": "Palestine, State of",
+    "assets.countries.PT": "Portugal",
+    "assets.countries.PW": "Palau",
+    "assets.countries.PY": "Paraguay",
+    "assets.countries.QA": "Qatar",
+    "assets.countries.RE": "Réunion",
+    "assets.countries.RO": "Romania",
+    "assets.countries.RS": "Serbia",
+    "assets.countries.RU": "Russian Federation",
+    "assets.countries.RW": "Rwanda",
+    "assets.countries.SA": "Saudi Arabia",
+    "assets.countries.SB": "Solomon Islands",
+    "assets.countries.SC": "Seychelles",
+    "assets.countries.SD": "Sudan",
+    "assets.countries.SE": "Sweden",
+    "assets.countries.SG": "Singapore",
+    "assets.countries.SH": "Saint Helena, Ascension and Tristan da Cunha",
+    "assets.countries.SI": "Slovenia",
+    "assets.countries.SJ": "Svalbard and Jan Mayen",
+    "assets.countries.SK": "Slovakia",
+    "assets.countries.SL": "Sierra Leone",
+    "assets.countries.SM": "San Marino",
+    "assets.countries.SN": "Senegal",
+    "assets.countries.SO": "Somalia",
+    "assets.countries.SR": "Suriname",
+    "assets.countries.SS": "South Sudan",
+    "assets.countries.ST": "Sao Tome and Principe",
+    "assets.countries.SV": "El Salvador",
+    "assets.countries.SX": "Sint Maarten (Dutch part)",
+    "assets.countries.SY": "Syrian Arab Republic",
+    "assets.countries.SZ": "Eswatini",
+    "assets.countries.TC": "Turks and Caicos Islands",
+    "assets.countries.TD": "Chad",
+    "assets.countries.TF": "French Southern Territories",
+    "assets.countries.TG": "Togo",
+    "assets.countries.TH": "Thailand",
+    "assets.countries.TJ": "Tajikistan",
+    "assets.countries.TK": "Tokelau",
+    "assets.countries.TL": "Timor-Leste",
+    "assets.countries.TM": "Turkmenistan",
+    "assets.countries.TN": "Tunisia",
+    "assets.countries.TO": "Tonga",
+    "assets.countries.TR": "Turkey",
+    "assets.countries.TT": "Trinidad and Tobago",
+    "assets.countries.TV": "Tuvalu",
+    "assets.countries.TW": "Taiwan",
+    "assets.countries.TZ": "Tanzania, the United Republic of",
+    "assets.countries.UA": "Ukraine",
+    "assets.countries.UG": "Uganda",
+    "assets.countries.UM": "United States Minor Outlying Islands",
+    "assets.countries.US": "United States",
+    "assets.countries.UY": "Uruguay",
+    "assets.countries.UZ": "Uzbekistan",
+    "assets.countries.VA": "Holy See",
+    "assets.countries.VC": "Saint Vincent and the Grenadines",
+    "assets.countries.VE": "Venezuela (Bolivarian Republic of)",
+    "assets.countries.VG": "Virgin Islands (British)",
+    "assets.countries.VI": "Virgin Islands (U.S.)",
+    "assets.countries.VN": "Viet Nam",
+    "assets.countries.VU": "Vanuatu",
+    "assets.countries.WF": "Wallis and Futuna",
+    "assets.countries.WS": "Samoa",
+    "assets.countries.YE": "Yemen",
+    "assets.countries.YT": "Mayotte",
+    "assets.countries.ZA": "South Africa",
+    "assets.countries.ZM": "Zambia",
+    "assets.countries.ZW": "Zimbabwe",
+    "assets.mimetypes.application/epub_zip": "EPUB ebook",
+    "assets.mimetypes.application/msword": "Word document",
+    "assets.mimetypes.application/pdf": "PDF document",
+    "assets.mimetypes.application/vnd.moodle.backup": "Moodle backup",
+    "assets.mimetypes.application/vnd.ms-excel": "Excel spreadsheet",
+    "assets.mimetypes.application/vnd.ms-excel.sheet.macroEnabled.12": "Excel 2007 macro-enabled workbook",
+    "assets.mimetypes.application/vnd.ms-powerpoint": "Powerpoint presentation",
+    "assets.mimetypes.application/vnd.oasis.opendocument.spreadsheet": "OpenDocument Spreadsheet",
+    "assets.mimetypes.application/vnd.oasis.opendocument.spreadsheet-template": "OpenDocument Spreadsheet template",
+    "assets.mimetypes.application/vnd.oasis.opendocument.text": "OpenDocument Text document",
+    "assets.mimetypes.application/vnd.oasis.opendocument.text-template": "OpenDocument Text template",
+    "assets.mimetypes.application/vnd.oasis.opendocument.text-web": "OpenDocument Web page template",
+    "assets.mimetypes.application/vnd.openxmlformats-officedocument.presentationml.presentation": "Powerpoint 2007 presentation",
+    "assets.mimetypes.application/vnd.openxmlformats-officedocument.presentationml.slideshow": "Powerpoint 2007 slideshow",
+    "assets.mimetypes.application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "Excel 2007 spreadsheet",
+    "assets.mimetypes.application/vnd.openxmlformats-officedocument.spreadsheetml.template": "Excel 2007 template",
+    "assets.mimetypes.application/vnd.openxmlformats-officedocument.wordprocessingml.document": "Word 2007 document",
+    "assets.mimetypes.application/x-iwork-keynote-sffkey": "iWork Keynote presentation",
+    "assets.mimetypes.application/x-iwork-numbers-sffnumbers": "iWork Numbers spreadsheet",
+    "assets.mimetypes.application/x-iwork-pages-sffpages": "iWork Pages document",
+    "assets.mimetypes.application/x-javascript": "JavaScript source",
+    "assets.mimetypes.application/x-mspublisher": "Publisher document",
+    "assets.mimetypes.application/x-shockwave-flash": "Flash animation",
+    "assets.mimetypes.application/xhtml_xml": "XHTML document",
+    "assets.mimetypes.archive": "Archive ({{$a.EXT}})",
+    "assets.mimetypes.audio": "Audio file ({{$a.EXT}})",
+    "assets.mimetypes.default": "{{$a.mimetype}}",
+    "assets.mimetypes.document/unknown": "File",
+    "assets.mimetypes.group:archive": "Archive files",
+    "assets.mimetypes.group:audio": "Audio files",
+    "assets.mimetypes.group:document": "Document files",
+    "assets.mimetypes.group:html_audio": "Audio files natively supported by browsers",
+    "assets.mimetypes.group:html_track": "HTML track files",
+    "assets.mimetypes.group:html_video": "Video files natively supported by browsers",
+    "assets.mimetypes.group:image": "Image files",
+    "assets.mimetypes.group:presentation": "Presentation files",
+    "assets.mimetypes.group:sourcecode": "Source code",
+    "assets.mimetypes.group:spreadsheet": "Spreadsheet files",
+    "assets.mimetypes.group:video": "Video files",
+    "assets.mimetypes.group:web_audio": "Audio files used on the web",
+    "assets.mimetypes.group:web_file": "Web files",
+    "assets.mimetypes.group:web_image": "Image files used on the web",
+    "assets.mimetypes.group:web_video": "Video files used on the web",
+    "assets.mimetypes.image": "Image ({{$a.MIMETYPE2}})",
+    "assets.mimetypes.image/vnd.microsoft.icon": "Windows icon",
+    "assets.mimetypes.text/css": "Cascading Style-Sheet",
+    "assets.mimetypes.text/csv": "Comma-separated values",
+    "assets.mimetypes.text/html": "HTML document",
+    "assets.mimetypes.text/plain": "Text file",
+    "assets.mimetypes.text/rtf": "RTF document",
+    "assets.mimetypes.text/vtt": "Web Video Text Track",
+    "assets.mimetypes.video": "Video file ({{$a.EXT}})",
+    "core.login.yourenteredsite": "Connect to your site"
+}
\ No newline at end of file
diff --git a/src/assets/mimetypes/en.json b/src/assets/mimetypes/en.json
new file mode 100644
index 000000000..f94347be4
--- /dev/null
+++ b/src/assets/mimetypes/en.json
@@ -0,0 +1,54 @@
+{
+  "application/epub_zip": "EPUB ebook",
+  "application/msword": "Word document",
+  "application/pdf": "PDF document",
+  "application/vnd.moodle.backup": "Moodle backup",
+  "application/vnd.ms-excel": "Excel spreadsheet",
+  "application/vnd.ms-excel.sheet.macroEnabled.12": "Excel 2007 macro-enabled workbook",
+  "application/vnd.ms-powerpoint": "Powerpoint presentation",
+  "application/vnd.oasis.opendocument.spreadsheet": "OpenDocument Spreadsheet",
+  "application/vnd.oasis.opendocument.spreadsheet-template": "OpenDocument Spreadsheet template",
+  "application/vnd.oasis.opendocument.text": "OpenDocument Text document",
+  "application/vnd.oasis.opendocument.text-template": "OpenDocument Text template",
+  "application/vnd.oasis.opendocument.text-web": "OpenDocument Web page template",
+  "application/vnd.openxmlformats-officedocument.presentationml.presentation": "Powerpoint 2007 presentation",
+  "application/vnd.openxmlformats-officedocument.presentationml.slideshow": "Powerpoint 2007 slideshow",
+  "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "Excel 2007 spreadsheet",
+  "application/vnd.openxmlformats-officedocument.spreadsheetml.template": "Excel 2007 template",
+  "application/vnd.openxmlformats-officedocument.wordprocessingml.document": "Word 2007 document",
+  "application/x-iwork-keynote-sffkey": "iWork Keynote presentation",
+  "application/x-iwork-numbers-sffnumbers": "iWork Numbers spreadsheet",
+  "application/x-iwork-pages-sffpages": "iWork Pages document",
+  "application/x-javascript": "JavaScript source",
+  "application/x-mspublisher": "Publisher document",
+  "application/x-shockwave-flash": "Flash animation",
+  "application/xhtml_xml": "XHTML document",
+  "archive": "Archive ({{$a.EXT}})",
+  "audio": "Audio file ({{$a.EXT}})",
+  "default": "{{$a.mimetype}}",
+  "document/unknown": "File",
+  "group:archive": "Archive files",
+  "group:audio": "Audio files",
+  "group:document": "Document files",
+  "group:html_audio": "Audio files natively supported by browsers",
+  "group:html_track": "HTML track files",
+  "group:html_video": "Video files natively supported by browsers",
+  "group:image": "Image files",
+  "group:presentation": "Presentation files",
+  "group:sourcecode": "Source code",
+  "group:spreadsheet": "Spreadsheet files",
+  "group:video": "Video files",
+  "group:web_audio": "Audio files used on the web",
+  "group:web_file": "Web files",
+  "group:web_image": "Image files used on the web",
+  "group:web_video": "Video files used on the web",
+  "image": "Image ({{$a.MIMETYPE2}})",
+  "image/vnd.microsoft.icon": "Windows icon",
+  "text/css": "Cascading Style-Sheet",
+  "text/csv": "Comma-separated values",
+  "text/html": "HTML document",
+  "text/plain": "Text file",
+  "text/rtf": "RTF document",
+  "text/vtt": "Web Video Text Track",
+  "video": "Video file ({{$a.EXT}})"
+}
\ No newline at end of file