[gnome-shell] Bump version to 3.28.0

[Florian Müllner <fmuellner src gnome org>]

commit d4f67a7d42fe75723c1e9ffae3307d881bd828d3
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Mar 5 23:48:04 2018 +0100

    Bump version to 3.28.0
    
    Update NEWS.

 NEWS        | 7 +++++++
 meson.build | 4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index fb935c2b9..eeb763497 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+3.28.0
+======
+
+Translators:
+  A S Alam [pa], gogo [hr], Chao-Hsiung Liao [zh_TW], Jordi Mas [ca],
+  Anders Jonsson [sv], Balázs Úr [hu]
+
 3.27.92
 =======
 * Misc. bug fixes [Florian; #64, #66, #72]
diff --git a/meson.build b/meson.build
index f3d966530..57640eb46 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gnome-shell', 'c',
-  version: '3.27.92',
+  version: '3.28.0',
   meson_version: '>= 0.42.0',
   license: 'GPLv2+'
 )
@@ -23,7 +23,7 @@ gi_req = '>= 1.49.1'
 gjs_req = '>= 1.47.0'
 gtk_req = '>= 3.15.0'
 json_glib_req = '>= 0.13.2'
-mutter_req = '>= 3.27.91'
+mutter_req = '>= 3.28.0'
 polkit_req = '>= 0.100'
 schemas_req = '>= 3.21.3'
 startup_req = '>= 0.11'