Rename Grid to Mesh
New DistortedProgram class.
Fix a lot of Lint warnings in the apps.
Again change of API. Now instead of the 'DistortedEffects.draw() and DistortedTree.draw()' we have 'DistortedFramebuffer.renderTo()'
Change of names.
Change in the API: we always have to create a DistortedFramebuffer to render to.
Fix 'Deform' and 'Projection's behaviour after onPause().
Hide the 'depth' of a DistortedTexture inside the library, so users do not get exposed to this weirdness.
Complete the split DistortedObject -> (DistortedTexture,DistortedEffectQueue)
Rename various classes; fix a bug in Around the World.
Major change in API: separate the GRID from DistortedObject; completely remove classes derived from DistortedObject.
Fix with Projection
Turn the former 'FOV' app into 'Projection' app that also checks the (x,y) the camera looks at.