Lightweight Java Game Library Code

Windows: moved closerequested from native to java

Windows: LWJGL didn't work well with jinput, but compatibility could be greatly improved if LWJGL used DirectInput 8 (like jinput). This can't be done unconditionally, since we need the DX3 support for older versions of windows. So, I've moved most Mouse and Keyboard stuff from native to java side and generalized DirectInput access through an abstract base class, with two concrete subclasses, one for dx3 and one for dx8.

Windows: Cleanup of native input code

fixed offset/length to use buffer properties

fixed offset/length to use buffer properties
keep reference to buffers until free'd
added FMUSIC_LoadSongEx test

Mac OS X: Fix ctrl-click right button handling

Windows: Display.getVersion should return null when getAdapter() is null

Windows: Make sure the DirectInput even buffer is properly flushed before switching to grabbed state.

Windows: Fixed spurious mouse button events after a Mouse.setGrabbed(true)

Windows: Fix Windows sometimes marking LWJGL apps as "not responding"