Update README.md
updated to version 2.2.1
Merge branch 'master' of github.com:AviaryInc/Mobile-Feather-SDK-for-Android
Update CHANGELOG.md
Update CHANGELOG.md
Update README.md
Update README.md
Merge branch 'master' of git://github.com/AviaryInc/Mobile-Feather-SDK-for-Android into update_to_2.2.1
Extract new SDK (2.2.1)
Merge update_to_2.2.1 with origin master (head: c4ad288dc1) to get our fixes