Lightweight Java Game Library Code

Avoid ARB_pixel_format in Display whereever possible. Must try the path once though, to increase the chance of getting a pbuffer compatible context. If it fails, the normal path context is kept, in hope that it will support pbuffers. If not, only unique context pbuffers will be available.

Win32 part of fast Pbuffer

Fixed typo

Added Pbuffer.isUsingDisplayContext()

Implemented new type of Pbuffer that use the Display context, which is faster than a separate context (Linux)

Make sure VBOTracker reset the current tracker when GLContext.useContext(null) is called

Use WeakHashMap in the static mapping from contexts to vbo trackers in VBOTracker.java.

null currentContext when GLContext.useContext(null) is called

Corrected minor documentation error in GLContext

updated to current