[mutter/gnome-3-28] Bump version to 3.28.1

[Florian Müllner <fmuellner src gnome org>]

commit 34644b2133241efe25794b57ddd18e6d9517cc0b
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Apr 13 19:11:57 2018 +0200

    Bump version to 3.28.1
    
    Update NEWS.

 NEWS         | 20 ++++++++++++++++++++
 configure.ac |  2 +-
 2 files changed, 21 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 47cf3acbc..942e00923 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,23 @@
+3.28.1
+======
+* Fix various input-method regressions [Carlos; #65, #74, #66]
+* Fix wayland build on FreeBSD [Ting-Wei; #792280, #792717]
+* Fix swapped colors in screenshots (again) [Carlos; #72]
+* Allow building with elogind [Rasmus; !46]
+* Consider display rotation for cursor [Olivier; #85]
+* Fall back to non-modifier GBM surfaces [Daniel; #84]
+* Disable KMS modifiers by default [Jonas; #81]
+* Misc bug fixes [handsome-feng; !45]
+
+Contributors:
+  Jonas Ådahl, Olivier Fourdan, Carlos Garnacho, handsome-feng, Yussuf Khalil,
+  Ting-Wei Lan, Aleksandr Mezin, Alberts Muktupāvels,
+  Georges Basile Stavracas Neto, Benjamin Otte, Daniel Stone, Rasmus Thomsen,
+  Marco Trevisan (Treviño), Daniel van Vugt
+
+Translators:
+  Emin Tufan Çetin [tr], Dušan Kazik [sk], Matej Urbančič [sl]
+
 3.28.0
 ======
 * Fix xdg-foreign regression [Carlos; #63]
diff --git a/configure.ac b/configure.ac
index 36265b174..d9735eced 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], [28])
-m4_define([mutter_micro_version], [0])
+m4_define([mutter_micro_version], [1])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])