Added Xbox 360 Gamepad definitions
apply parent position to image render
apply parent point to image rect
Merge branch 'master' of https://github.com/HaxePunk/HaxePunk into xbox-gamepad
Make fixed timestep mode animate like non-fixed

Changed timer values for fixed timestep mode so that spritemaps animate
at the same rate in fixed timestep mode as they do in non-fixed timestep
mode
Fixed native rendering for Tilemap.usePositions
Clamping graphic coordinates to exact pixels to prevent tearing
Merge pull request #108 from squiddingme/master

Small change to make spritemaps animate the same in fixed timestep mode
Merge pull request #107 from MALHCat/master

apply parent position to image render
Refactored: Layer Sprites moved to Scene from AtlasData.
Refactored: Scene now tells AtlasData when to render instead of Engine.
Added: Graphics now maintain references to their parent entities.
Fixed: Circle/Rect/Text now use get their layer sprite from the scene instead of AtlasData.
Fixed: Entity.addGraphic didn't update the GraphicList entity.
Fixed: Null Refernce when setEntity was passed null.
Fixed: Text is no longer selectable.
Removed: Moot null check of parent sprite in Text.findParentSprite().
Fixed:  HXP.windowWidth/Height now set to correct values.
Fixed: Screen resizing would occur before scaleY was set.
Fixed: incorrect return statement in GraphicList.add()..
Fixed: Text reported wrong width/height when the screen had been scaled.
Fixed: HXP.windowWidth/Height now show correct values after a resize event.
Merge pull request #110 from MaskedPixel/mobile-dev-fix

Fixing several issues with text and scaling on mobile targets.
setEntity does not return Dynamic
Optimized matrix math
Improve documentation of World.collideLine().