transparent actionbar, translucent statusbar if applicable

translucent statusbar only on KITKAT when no actionbar
actionbar home button can resume game

set canresume to true when pressing the home button of the actionbar
donate: query inventory asynchronously, show progress in title
preferences: support headers for devices with multipane support
version 0.2.7
Merge branch 'master' into vip

Conflicts:
	AndroidManifest.xml