[pygobject] configure.ac: post-release version bump to 3.21.0

[Simon Feltman <sfeltman src gnome org>]

commit c2a66daf3ac62e3e97f8d7fe16afccf37f413305
Author: Simon Feltman <sfeltman src gnome org>
Date:   Mon Mar 21 21:00:37 2016 -0700

    configure.ac: post-release version bump to 3.21.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 03b2445..fff1863 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@ m4_define(python3_min_ver, 3.1)
 
 dnl the pygobject version number
 m4_define(pygobject_major_version, 3)
-m4_define(pygobject_minor_version, 20)
+m4_define(pygobject_minor_version, 21)
 m4_define(pygobject_micro_version, 0)
 m4_define(pygobject_version, pygobject_major_version.pygobject_minor_version.pygobject_micro_version)