[metacity] bump version to 3.15.3

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 15c77c21ce6d8c90a9fd7a8ca8b1f9590627f5e0
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Apr 6 16:26:59 2015 +0300

    bump version to 3.15.3

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4bd84c3..9c73671 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ(2.50)
 
 m4_define([metacity_major_version], [3])
 m4_define([metacity_minor_version], [15])
-m4_define([metacity_micro_version], [2])
+m4_define([metacity_micro_version], [3])
 
 m4_define([metacity_version],
           [metacity_major_version.metacity_minor_version.metacity_micro_version])