Discussion: http://www.html5gamedevs.com/topic/7409-tilemaps-changing/
It should remove the problem of updating stuff in a 100x100 tilemap making the engine recalculate every single update.(390 tiles changed in that map makes it a 100x100x390 loop.
Whould make the recalculate parameter in the setCollision functions unnecessary as well.
checkPointerDown method was a verbatim duplication of checkPointerOver - added pointer.isDown check to passed pointer and altered wording of associated docs to make it clearer what the method is doing.
Fix for issue #917: Calling reset() on Sprite with a P2 body can result in body.data.world == null.
Calling addToWorld() would previously not check the _toRemove array, which could, if the timing were right, result in a Sprite being revived but then removed from the P2 World--the result of this being the Sprite's data would be in a mixed state causing it to appear visually but not function in the world.
TilemapLayer.wrap property - if true the map is rendered as if it is on the surface of a toroid (donut) instead of a plane. This allows for games that seamlessly scroll from one edge to the opposite edge of the world without noticing the transition. Note that the World size must match the Map size (thanks @jotson #851)
If you call ArcadePhysics.collide on a Sprite vs. a Tilemap and provide a custom processCallback, the result was being ignored and the sprite was being separated regardless (thanks @aivins fix#891#890)
Sprite.updateCrop is available if you wish to update an externally referenced crop rectangle.
Sprites and Images now have their own textures objects, they are no longer references to those stored in the global Pixi.TextureCache. This allows you to redefine the texture frame dynamically without messing up any other Sprites in your game, such as via cropping. They still share global Base Textures, so image references are kept to a minimum.
Sprite.resetFrame will revert the Sprites texture frame back to its defaults dimensions. This is called when you call Sprite.crop with no rectangle, to reset the crop effect, but can be userful in other situations so we've left it as a public method.
