* Rename dictionary worker files * Rename classes * Rename file * Rename class * Generalize the _invoke method * Rename 'import' to 'importDictionary' * Improve DictionaryImporterMediaLoader usage * Refactor message handler * Generalize onProgress event
* Create new classes for importing dictionaries from a separate thread * Use threaded importer * Update worker tests
* Add getImportedScripts utility function to test-sw.js * Move functionality to testServiceWorker * Rename file * Add loadEslint utility function * Add filterScriptPaths utility