Merge pull request #1 from ShinobiControls/master

Added license and updated README
Update to work with 2.5.6

I think this will probably clash with a commit in master...
Merge branch 'master' of github.com:sammyd/Shinobi-RangeSelector

Conflicts:
	RangeSelector.xcodeproj/project.pbxproj
	RangeSelector/MomentumAnimation.m
Merge branch 'master' into shinobi