Turning GCM push message types into more generic information.
Shifting GCM specific pieces of Registrations in AeroGearGCMMessageReceiver
Updating Javadocs to explain how routing will work
Merge branch 'AGDROID-84'
removed unused Log import
Merge branch 'removed_unused_Log_import'
bookkeeping the RestAdapter runnables. AGDROID-11
add cancel method to PipeRunnable. AGDROID-11
add cancel method to Pipe. AGDROID-11
revisit cancel methods on Loaders. AGDROID-11