Lightweight Java Game Library Code

Implemented proper buffer reference retaining for complicated functions like glVertexAttribPointer and glTexCoordPointer. Patch by MatthiasM.

reworked typecasting with a dash of insanity to look more like nalBufferData - lisp anyone?

reordered context destruction - fixing some invalidation issues

fixed issues with typecasting of buffer type

remove context from the devices list of context on context destroy

moved invalidation into sycnhronized block

dont compare validity on equals

fixed address checking issue
fixed issue with ALC error checking not taking a device into account
now tracking device and context create and destroy
made the create with open default device option public
misc cleaning up and commenting

Linux: Removed GCJ workaround since current GCJ versions support re-entrant AWT locking

Implemented Keyboard.enableRepeatEvents(), Keyboard.areRepeatEventsEnabled() and Keyboard.isEventRepeat() to control repeat event reporting. Added repeat key test to KeyboardTest