[dconf-editor] Prepare 3.21.1.

[Arnaud Bonatti <arnaudb src gnome org>]

commit 7c99973375bbcc6dc0a92a02f4d46b15203df492
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Apr 26 01:18:34 2016 +0200

    Prepare 3.21.1.

 NEWS         |   15 +++++++++++++++
 configure.ac |    2 +-
 2 files changed, 16 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index ef37777..941b8fe 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,18 @@
+dconf-editor 3.21.1
+=====================
+
+Some nullable variables are more correctly checked.
+
+dconf-editor 3.20.2
+=====================
+
+The english wording of the welcome dialog has (again) been improved, and a bug
+appearing when closing the application with the app-menu has been corrected.
+
+Translations updated:
+  Polish: Piotr Drąg
+  Swedish: Anders Jonsson
+
 dconf-editor 3.20.1
 =====================
 
diff --git a/configure.ac b/configure.ac
index f5ee925..b1a34ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_INIT([dconf-editor],
-        [3.20.1],
+        [3.21.1],
         [https://bugzilla.gnome.org/enter_bug.cgi?product=dconf-editor],
         [dconf-editor])