ATF type missmatching fixed
Added ATF support for Cube textures
"lessThan" optimization
Merge remote-tracking branch 'origin/master' into dev
Light clone fix and shadow optimization
Checking _data before clearing in IndexStream and VertexStream
Added updateNextFrame to the Animation API
Modification to fix specular map with shadows
Merge branch 'origin/dev'
Finish BPfix
Bump version to 2.3.
Merge branch 'upstream' of https://github.com/fsilvestrim/minko into fsilvestrim-upstream

Conflicts:
	src/aerys/minko/render/resource/texture/TextureResource.as
Merge branch 'dev' of https://github.com/QW0101/minko into QW0101-dev

Conflicts:
	src/aerys/minko/scene/node/light/DirectionalLight.as