Merge branch 'master' into p3d

Conflicts:
	gdx/src/com/badlogic/gdx/math/Matrix4.java
Merge branch 'master' into p3d

Conflicts:
	gdx/src/com/badlogic/gdx/math/Matrix4.java
removed explosion
Merge branch 'p3d' of https://github.com/lordjone/libgdx into lordjone-p3d
GWT Compatibility
Merge branch 'lordjone-p3d'
Remove PremultiplyAlpha
Update CHANGES