- implement closing of windows who don't support WM_DELETE_WINDOW - remove item from scene in removeWindow() to avoid crashing when we try   to paint it - fix decorator to have home/close buttons for jammed fullsceen windows - check if PID is 0 in kill_window() to avoid suicide
- implement closing of windows who don't support WM_DELETE_WINDOW
- remove item from scene in removeWindow() to avoid crashing when we try
  to paint it
- fix decorator to have home/close buttons for jammed fullsceen windows
- check if PID is 0 in kill_window() to avoid suicide

siraj/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,nemomobile-graveyard/mcompositor