Lightweight Java Game Library Code

Win32: Handle all Windows messages, and ignore those with inappropriate HWNDs

Win32: Confine cursor to fullscreen window to prevent native cursors to stray outside borders in multi-monitor setups

Removed that ugly calibration code! Now using a new kind of hires timer instead.

Win32: Fix Pbuffer creation

Win32: Fix Pbuffer creation

Win32: typo fix in Pbuffer.c

Win32: Fix type in exception message in context.c

Win32: Handle context-dependent wgl extensions

Win32: Compile fix

Removed unsued JNIEnv parameter from extgl_QueryExtension