[mutter] Bump version to 3.29.4

[Florian Müllner <fmuellner src gnome org>]

commit 5ac7109aaa8894ce870a8c8518b36a153975eafb
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Jul 18 17:36:45 2018 +0200

    Bump version to 3.29.4
    
    Update NEWS.

 NEWS         | 14 ++++++++++++--
 configure.ac |  2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/NEWS b/NEWS
index 0d0d9ffb8..7a03ef5ad 100644
--- a/NEWS
+++ b/NEWS
@@ -1,10 +1,20 @@
+3.29.4
+======
+* Fix crash with parent-less modal dialogs [Olivier; #174]
+* Preserve paint volumes where possible to optimize CPU usage [Carlos; #782344]
+
+Contributors:
+  Jonas Ådahl, Olivier Fourdan, Carlos Garnacho, Iain Lane, Bastien Nocera
+
+Translators:
+  Daniel Șerbănescu [ro]
+
 3.29.3
 ======
 * Fix Korean Hangul support on wayland [Changwoo; #152]
 * Improve support for proprietary Nvidia driver [Jonas; #790316]
 * Only upload HW cursor sprite to the GPU that will display them [Jonas; #77]
-* nvidia [Miguel; #2]
-* nvidia [Miguel; #782575]
+* Improve EGLstream support [Miguel; #2, #782575]
 * Remove MetaScreen to prepare for non-mandatary X11 dependency
   [Armin, Jonas; #759538]
 * Misc. bug fixes [Olivier, Jonas, Sam; #160, !130, #786929, #788834]
diff --git a/configure.ac b/configure.ac
index 22e1b878b..ee4d9e741 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], [29])
-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])