Update UIL to 1.9.3
Update support-v4 to 21.0.1
Bump support library submodule to v21.0.1 too

Assuming that the HEAD at October 30th, 2014 is what was used to release
21.0.1. We can't know for sure since it wasn't tagged.
Bump toolVersion
Bump gradle plugin version to 0.14.1, upgrade properties
Don't abort on lint errors
Fix select_local_apps_list_item layout on <17
Bump target sdk to 21
Fix more RTL issues