[clutter-gst/clutter-gst-3.0] build: Post release bump to 3.0.21

[Lionel Landwerlin <llandwerlin src gnome org>]

commit a5307f76c7945b00a773054234f51c624fb2c129
Author: Lionel Landwerlin <llandwerlin gmail com>
Date:   Thu Sep 8 08:33:10 2016 +0100

    build: Post release bump to 3.0.21

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f41ae59..cad6c7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 # An even micro number indicates a released version.
 m4_define(clutter_gst_major_version, 3)
 m4_define(clutter_gst_minor_version, 0)
-m4_define(clutter_gst_micro_version, 20)
+m4_define(clutter_gst_micro_version, 21)
 
 m4_define(clutter_api_version, 1.0)
 m4_define([clutter_gst_api_version], [3.0])