changes:
 - libW11 support to change the cursor to a xterm cursor
 - don't go into the menu-state when someone presses and then releases Alt
 - don't close terminals when people hit the x button or alt+f4
 - fix NT_get_state:
    - allow using the VK_LWIN key as a meta key (people who use litestep
      may want this, because they can turn off the windows menu popup crap).
    - fix logic about control
 - small tweak that makes inherit pixmap a *lot* faster (i.e. actually
   usuable)