[gnome-applets] bump version to 3.20.0, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit c0c070e6604e0b5ae605106f07cdd7fc895da93d
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Apr 16 22:31:46 2016 +0300

    bump version to 3.20.0, update NEWS

 NEWS         |   16 ++++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 18 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index d94ea80..d0a4cff 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,19 @@
+Version 3.20.0
+==============
+- Added Command applet. (Balló György)
+- Added Timer applet. (Balló György)
+- Drop pygobject-3.0 build-time dependency. (Dmitry Shachnev)
+- stickynotes: don't ignore font type. (Balló György)
+- windowpicker: implement logout button. (Sebastian Geiger)
+- windowpicker: show title also for non-maximized windows. (Sebastian Geiger)
+- windowpicker: small fixes. (Sebastian Geiger)
+- Updated translations:
+  Aurimas Černius (lt), Balázs Úr (hu), Daniel Mustieles (es),
+  Dušan Kazik (sk), Gábor Kelemen (hu), Josef Andersson (sv),
+  Kjartan Maraas (nb), Marek Černocký (cs), Mario Blättermann (de),
+  Mayela Miranda (es), Мирослав Николић (sr, sr latin), Muhammet Kara (tr),
+  Pedro Albuquerque (pt), Piotr Drąg (pl), Rafael Fontenelle (pt_BR).
+
 Version 3.18.1
 ==============
 - stickynotes: don't ignore font and background color setting.
diff --git a/configure.ac b/configure.ac
index 3311af9..905a18d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,8 +3,8 @@ dnl Define version info
 dnl **************************************************************************
 
 m4_define([ga_major_version], [3])
-m4_define([ga_minor_version], [19])
-m4_define([ga_micro_version], [1])
+m4_define([ga_minor_version], [20])
+m4_define([ga_micro_version], [0])
 m4_define([ga_version], [ga_major_version.ga_minor_version.ga_micro_version])
 
 dnl **************************************************************************