Merge pull request #6 from HaxeFlixel/dev

Dev
Merge branch 'dev' into my-dev
Optimizing input checking when using FlxG.keys
Merge branch 'dev' into KeyboardInputOptimization
Updated CHANGELOG to reflect recent input optimizations.
Fixed CHANGELOG to refer to correct project version (3.0.5)
Fixed CHANGELOG to refer to correct project version (3.0.5)
Merge branch 'KeyboardInputOptimization' of https://github.com/crazysam/HaxeFlixel into KeyboardInputOptimization
Merge remote-tracking branch 'origin/dev' into KeyboardInputOptimization
Merge pull request #754 from crazysam/KeyboardInputOptimization

Keyboard input optimization