Features
Added support for translations of JavaScript strings (particularly for features in the admin pages).
Fixes
Disabled Translate button in String Translation UI when no languages are selected.
Fixed an issue with wrong translations of admin texts showing in admin UI.
Fixed an issue with escaping the apostrophe in SQL query when searching for strings.
Added the ability to register strings from legacy Text widgets in a default language. Before, it was always registered in English.
Fixed an issue with translating admin-texts that have special characters in their name.
Fixed a problem with upgrade failing to finish.