*Program now exits cleanly and fixed a memory leak involving deleting CluEngine. cluDrop now used at end of program and cluRun exits the game loop.

*Many functions placed inside CluEngine so you don't have to use GetInterface functions to use them. Fixes #2

*Added checks for many functions so they don't crash at user error, but still some need checking.

*Not using glut, so I got rid of the lib and header files.

*Correctly init glew now.

*Main.cpp now does correct issue checking...

Signed-off-by: PandaDragonThing <jacob@linuxrocket.net>