Lightweight Java Game Library Code

updated and added license where needed

Linux: Don't double free the Display connection in the switchDisplayMode error path

Linux: Removed redundant include statements

Linux: Moved screen from native to java

Linux: Moved another Display instance to java

Linux: Moved another Display instance to java

Linux: Moved Display pointer from native to java

Linux: Moved most input related stuff from native to java

Linux: Fixed resetDisplayMode in case XRandr is used and the first reported mode is not the initial mode

Linux: don't throw exception if Xrandr or XF86VM extension query fails