Begin develop branch
use vertical sync to prevent banding
Merge branch 'master' into develop

Conflicts:
	bin/cortex
	src/main.cpp
	src/testApp.cpp
adding basic tweener class + implementations for toggles
oops, forgot to commit the shader change
don't update booleans if tween is running
Merge pull request #1 from dzog/develop

Basic Tweener class + implementations for toggles
Added tweener to xcode project