[mutter] Created tag 3.22.4

[Florian Müllner <fmuellner src gnome org>]

The signed tag '3.22.4' was created.

Tagger: Florian Müllner <fmuellner gnome org>
Date: Tue Apr 11 02:40:37 2017 +0200

    Tag release 3.22.4

Changes since the last tag '3.22.3':

Carlos Garnacho (3):
      xwayland: Release xdnd grabs ASAP
      xwayland: Check MetaDndBridge focus_window when updating X11 proxy window
      xwayland: Use timestamp from XdndPosition/Drop on XConvertSelection

Daniel Stone (1):
      xwayland: Fix lockfile size confusion

Florian Müllner (1):
      Bump version to 3.22.4

GNOME Translation Robot (1):
      Update Scottish Gaelic translation

Olivier Fourdan (1):
      xwayland: Raise the dnd window each time

Rui Matos (1):
      clutter-clone: Unset source when source actor is destroyed

Shantanu Goel (1):
      frames: use correct variable in for loop assignment

Sveinn í Felli (1):
      Update Icelandic translation