1) stop culling back face2) reset OpenGL state beore each render (and not in onCreate)3) Improve Matrix3D so that we can test negative Scales
Fix a lot of Lint warnings in the apps.
Change of names.
Beginnings of split of DistortedObject into two separate classes: DistortedEffectQueues and DistortedTexture.
Still does not compile, but pushing already.
DEFORM: add support for Regions
Matrix3D: implement quaternion effect
Make the effect Center be always 3D.
Unify Effects3D and Matrix3D (still incomplete!)