Lightweight Java Game Library Code

Don't actually center cursor on setGrabbed(true)

Fixed linux native cursor hotspot

Undo GLContext.cpp split

LINUX: Made pbuffer creation independent of the Display context

Implemented reference counted loading of gl library in java

Made the mouse grab and native cursor properties persistent over destroy()/create()

Mouse reset coordinate fix

Moved openal native stub loading to java

Move native stub initialization from extgl into GLContext.java. Makes it much easier to
exlude extensions classes. Furthermore, GLContext.useContext(null) can now be used to
reset the native stubs when no context is current.

*** empty log message ***