[metacity] (4 commits) ...window: offset gravity position by invisible borders

[Alberts Muktupāvels <muktupavels src gnome org>]

Summary of changes:

  8dfb631... main: use g_unix_signal_add to add signal handler (*)
  df44cd1... main: add SIGINT handler (*)
  de8ecbc... main: use correct timestamp when closing display (*)
  c4a9e1b... window: offset gravity position by invisible borders (*)

(*) This commit already existed in another branch; no separate mail sent