Moved update processing more into Pix for custom
Made Spawner have static grid

Spawner now store a static called grid so that you can call spawner without specifying a grid
Pix now calls spawner when moving so it doens't have to handle the class copying itself

Next up:
Lines!
Merge branch 'master' of git://github.com/frenchie4111/PixelifeJava into frenchie4111-master

Conflicts:
	PixGrid.java
	Spawner.java