[mutter/gnome-3-22] Bump version to 3.22.4

[Florian Müllner <fmuellner src gnome org>]

commit a8b06afba6e9210171303bfef13f5bbddecc3668
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Apr 11 01:22:43 2017 +0200

    Bump version to 3.22.4
    
    Update NEWS.

 NEWS         |   14 ++++++++++++++
 configure.ac |    2 +-
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index ffc7882..80c0e27 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+3.22.4
+======
+* Fix crash when a window closes during Alt+Tab [Rui; #779483]
+* Fix mouse input stopping to work in applications [Carlos; #763246]
+* Fix DnD between QT5 and GTK3 applications on wayland [Carlos; #779757]
+* Fix lock-up when using additional theme variants [Shantanu; #780254]
+* Fix lockfile size confusion [Daniel; #774613]
+
+Contributors:
+  Olivier Fourdan, Carlos Garnacho, Shantanu Goel, Rui Matos, Daniel Stone
+
+Translations:
+  Sveinn í Felli [is], GNOME Translation Robot [gd]
+
 3.22.3
 ======
 * Fix switching between two finger- and edge scrolling on wayland [Rui; #771744]
diff --git a/configure.ac b/configure.ac
index 8dde793..a62afe0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ(2.62)
 
 m4_define([mutter_major_version], [3])
 m4_define([mutter_minor_version], [22])
-m4_define([mutter_micro_version], [3])
+m4_define([mutter_micro_version], [4])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])