[gnome-builder] build: release 3.21.1

[Christian Hergert <chergert src gnome org>]

commit d8eb5e10c9dde670a80bb130487c1c6c72aae1e4
Author: Christian Hergert <christian hergert me>
Date:   Thu Apr 28 03:24:42 2016 -0700

    build: release 3.21.1

 NEWS         |   11 +++++++++++
 configure.ac |    4 ++--
 2 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 79d2929..687556f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,15 @@
 ==============
+Version 3.21.1
+==============
+
+This is our starting point for the 3.22 cycle.
+
+This release is mostly the same as 3.20.2 except that it has an updated color
+palette for the Adwaita theme in GTK+ 3.21.1.
+
+Cheers!
+
+==============
 Version 3.20.2
 ==============
 
diff --git a/configure.ac b/configure.ac
index e85db26..24af84c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,8 +5,8 @@ dnl ***********************************************************************
 dnl Define Versioning Information
 dnl ***********************************************************************
 m4_define([builder_major_version],[3])
-m4_define([builder_minor_version],[20])
-m4_define([builder_micro_version],[3])
+m4_define([builder_minor_version],[21])
+m4_define([builder_micro_version],[1])
 m4_define([builder_version],[builder_major_version.builder_minor_version.builder_micro_version])
 m4_define([builder_interface_age],[0])
 m4_define([builder_bugreport_url],