[gnome-software/gnome-3-20] Release version 3.20.0

[Richard Hughes <rhughes src gnome org>]

commit c7029912eb1258fac75b3d2bc49fbae3aca61929
Author: Richard Hughes <richard hughsie com>
Date:   Mon Mar 21 11:13:04 2016 +0000

    Release version 3.20.0

 RELEASE                                        |    4 ++--
 configure.ac                                   |    2 +-
 data/appdata/org.gnome.Software.appdata.xml.in |   14 ++++++++++++++
 3 files changed, 17 insertions(+), 3 deletions(-)
---
diff --git a/RELEASE b/RELEASE
index e31619f..3da5901 100644
--- a/RELEASE
+++ b/RELEASE
@@ -7,8 +7,8 @@ Add any user visible changes into data/appdata/org.gnome.Software.appdata.xml.in
 
 3. Commit changes in gnome-software git:
 
-git commit -a -m "Release version 3.19.93"
-git tag -s GNOME_SOFTWARE_3_19_93 -m "==== Version 3.19.93 ===="
+git commit -a -m "Release version 3.20.0"
+git tag -s GNOME_SOFTWARE_3_20_0 -m "==== Version 3.20.0 ===="
 <enter password>
 git push --tags
 git push
diff --git a/configure.ac b/configure.ac
index dc132b9..f778065 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 # Copyright (C) 2010-2015 Richard Hughes <richard hughsie com>
 AC_PREREQ(2.63)
 
-AC_INIT([gnome-software],[3.19.93],[http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-software])
+AC_INIT([gnome-software],[3.20.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-software])
 AC_CONFIG_SRCDIR(src)
 AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar serial-tests foreign])
 AC_CONFIG_HEADERS([config.h])
diff --git a/data/appdata/org.gnome.Software.appdata.xml.in b/data/appdata/org.gnome.Software.appdata.xml.in
index 75efb2a..57f49c6 100644
--- a/data/appdata/org.gnome.Software.appdata.xml.in
+++ b/data/appdata/org.gnome.Software.appdata.xml.in
@@ -30,6 +30,20 @@
    Validate with `appstream-util validate *.appdata.xml`
   -->
   <releases>
+    <release version="3.20.0" date="2016-03-21">
+      <description>
+        <p>
+          This is the first stable release for GNOME 3.20 fixing the following
+          bugs:
+        </p>
+        <ul>
+          <li>Actually show the error dialog for an invalid file</li>
+          <li>Fix a crash when double clicking package files</li>
+          <li>Remove placeholder text from application details label</li>
+        </ul>
+        <p>This release also updates translations.</p>
+      </description>
+    </release>
     <release version="3.19.92" date="2016-03-14">
       <description>
         <p>