Mac OS X Display location

Location on screen at first place is wrong on “y”-coord.
Mouse location rounding (float ->  int).
Commented out a Mouse warp that modified the NSview canvas.
Compile against 10.9 and JDK 8.
NSView removeFromSuperView

destroyWindow must fully release the NSView, or the CALayer may still
be visible and/or you may not successfully  call Display.create()
again..