Fix amperstand in strings file, update android support lib.
Switch from Sherlock to appcompat, it was pretty easy!
Replace hacked-up viewpager with official version. Remove dead code. Remove fragmentMessenger stuff since it was only used for the emote selection and added unneeded complexity.
Merge pull request #218 from Geekner/master

Replace viewpager, switch to appcompat actionbar, clean up code.