Distorted Android

Improvements for the 'Cubes' and 'Effects3D' apps.

improve Postprocessing; new icon; minor things.

New 'Blur' App. Actual BLUR effect, of course, does not work.

FBO APP: add dynamic adding/removing the DEPTH attachment.

Correction for the 'Girl' app.

Improve the Sink app (funny?)

Mirror: replace the Head bitmap.

Mirror app finished (well, we still need to get some better bitmap for the girl)

First attempt at the 'Mirror' app.

Fix a lot of Lint warnings in the apps.