Added helper functions to GLUS.
First version of Example 33. Work in progress.

Added debug function in GLUS: Logging with glGetError() output.
Pre-final version of Example 33.

Fixed logging bug in GLUS.
Fixed minor NVIDIA issues for Example 32 and 33
Fixed project configuration in GLUS.
Updated README and fixed doxygen bug.
Added pthread lib for Ubuntu 14.04.
Updated README and project files for GLUS.