[zenity] release: Prepare for 3.28.0

[Jeremy Bicha <jbicha src gnome org>]

commit ad7411614bdf0c6b32b71fd13a4ec1f7d5d0ecb5
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Mon Mar 12 08:11:08 2018 -0400

    release: Prepare for 3.28.0

 NEWS         |    3 +++
 configure.ac |    2 +-
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 3c7a1c7..c8af4a4 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+Zenity 3.28.0
+       - Translation updates
+
 Zenity 3.27.90
        - Several fixes for proper translations (Piotr Drąg)
        - Translation updates
diff --git a/configure.ac b/configure.ac
index 2c96c45..d13afa6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Zenity],[3.27.90],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
+AC_INIT([Zenity],[3.28.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
 
 AC_PREREQ([2.63])