[ADD] add support for media/upload in twitter_lib.js
[FIX] unnecessary event handler when notifications is disabled
[MODIFY] fixup options.html
[MOIDFY] fixup ajaxRequest in twitter_lib.js
[FIX] unwork some UserActionMenu items
Version 0.5.4.15
[REMOVE] remove features to check hits-limit of Twitter API
[MODIFY] update to jQuery 2.1.3
[MODIFY] add getDefault method to OptionsBackend
[MODIFY] add adaptiveFetchSettings function to Renderer
[REMOVE] remove deprecated settings
[EXPERIMENTAL] new image upload