[zenity] Bump to 3.20.0

[Arx Henrique Pereira da Cruz <arxcruz src gnome org>]

commit 668bbf0e1fd4ff35da38ea93303596ee725513bb
Author: Arx Cruz <acruz redhat com>
Date:   Wed Mar 23 18:56:58 2016 +0100

    Bump to 3.20.0

 NEWS         |    3 +++
 configure.ac |    2 +-
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 14cf19d..efdff6e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+Zenity 3.20.0
+        - Translation updates
+
 Zenity 3.18.1.1
         - Bug #756756 fix compilation when webkitgtk is not installed (Tom Schoonjans)
 
diff --git a/configure.ac b/configure.ac
index 720fc17..2371f36 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Zenity],[3.18.1.1],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
+AC_INIT([Zenity],[3.20.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
 
 AC_PREREQ([2.63])