[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
[ADD] add support for Multiple media uploading
[MODIFY] fixup Composer, Shortener
Version 0.5.5.0