convert to ARC; 10.7 is now required
modernize code
workaround for iTunes 11.2 missing stream title
version 1.2
Merge remote-tracking branch 'upstream/master'

Conflicts:
	Source/CurrentsongAppDelegate.h
	Source/CurrentsongAppDelegate.m
	Source/CurrentsongStatusView.h
	Source/CurrentsongStatusView.m
	Source/en.lproj/MainMenu.xib
Update rating display (show or hidden state) only on trackElapsedTime action