Fixes + enhancements

- partial OpenGL-ES 2.0 support (may need some ARGB hack and more checks in the capabilities)
- upgrade to JOGL 2.0 RC11 post build 06
- fix for the debug pipeline
- fix for the creation of the GLU instances
- adds some TODO notices about the use of GLOffscreenAutoDrawable
- AWT-free image loader
- fix for GeneratedTexturesExample
- fix for the screenshot helper
- applet support (untested)
- fix for all canvases (doesn't assume the realization is successful)
- setVSyncEnabled(boolean)