[clutter-gst/clutter-gst-3.0] build: Post-release bump to 3.0.28

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 601561b7866849492203989dcdcd9b99068cfa94
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Wed Feb 6 15:17:00 2019 -0600

    build: Post-release bump to 3.0.28

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index 4a3857e..fc57228 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, 27)
+m4_define(clutter_gst_micro_version, 28)
 
 m4_define(clutter_api_version, 1.0)
 m4_define([clutter_gst_api_version], [3.0])