Cleanup and completion after merge

- Added menu overhaul (PLEASE FEEDBACK EVERYTHING)

- Menus will now move against the mouse if the resolution is too short in
  order to accomodate whatever may be in the menu (this saves the ingame
  menus)

- Added menu options for infiltrator ghosts, queued jumping
- The window will no longer change position when switching between menu
  and game, though it may un-maximize
- You can press F10 to reset the window size and position if they
  break
Release preparations (2.7b6)