Merge pull request #326 from nextcloud/refactor/folder-sync

appinfo/routes.php

js/app.js

js/background.js

js/controller/accountcontroller.js

js/controller/foldercontroller.js

js/controller/messagecontroller.js

js/models/account.js

js/models/folder.js

js/models/unifiedmessagecollection.js

js/radio.js

js/service/accountservice.js

js/service/foldersyncservice.js

js/service/messageservice.js

js/templates/message-list-item.html

js/tests/models/account_spec.js

js/tests/models/folder_spec.js

js/tests/service/foldersyncservice_spec.js

js/tests/service/messageservice_spec.js

js/tests/service_accountservice_spec.js

js/tests/test-main.js