* upgrade MaterialDrawer
* improve CustomEmojiHelper so now any parent view can be used for invalidation
* cleanup MainActivity a bit
* add emojiList to account database and show compatEmojis and custom emojis in drawer
* improve perf of drawer profile update
* fix account switching
* reuse gson, break after profile item was found
* basic implementation
* improve LoginActivity
* darken drawer background image
* add current avatar in ComposeActivity
* add account name to logout dialog
* multi account support for notifications
* multi account support for notifications
* bugfixes & cleanup
* fix bug where somethings notifications would open with the wrong user
* correctly set active account in SFragment
* small improvements