Lightweight Java Game Library Code

fix: moved handleMessages to its rightfull place

add: close button enabled

Updated linux files to recent mouse and display changes

Added isMinimized to linux

fix: updated to reflect changes in new mouse

mod: renaming of most methods/fields due to name clashes with Mouse
fix: check for DIERR_NOTACQUIRED when loosing focus
fix: check for controller failed, and would crash VM if no controller could be found

fix: make mouse actually behave!

new Mouse implementation, rewritten to better fit Controller structure

Removed dead code

added minimize button, disabling close button since we have no mechnism to notify the user of a close