[gnome-flashback] bump version to 3.20.1, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 783a5623b56137b59fd91bb0f9116c580c7bf7ae
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Wed May 18 19:29:00 2016 +0300

    bump version to 3.20.1, update NEWS

 NEWS         |    9 +++++++++
 configure.ac |    2 +-
 2 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 2c8b358..f92dff6 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,12 @@
+Version 3.20.1
+==============
+- desktop-background: use desktop window only when needed. (Alberts Muktupāvels)
+- display-config: handle invalid previous configurations. (Rui Matos)
+- notifications: fix two regressions. (Alberts Muktupāvels)
+- Fix multiple memory leaks. (Alberts Muktupāvels)
+- Updated translations:
+  Dušan Kazik (sk), Mario Blättermann (de).
+
 Version 3.20.0
 ==============
 - Fix crash in display-config with XRandR 1.2. (Alberts Muktupāvels)
diff --git a/configure.ac b/configure.ac
index e995625..cc50f63 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ dnl **************************************************************************
 
 m4_define([gf_major_version], [3])
 m4_define([gf_minor_version], [20])
-m4_define([gf_micro_version], [0])
+m4_define([gf_micro_version], [1])
 m4_define([gf_version], [gf_major_version.gf_minor_version.gf_micro_version])
 
 dnl **************************************************************************