[gnome-panel] bump version to 3.26.0, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 885457bfa18a9794009f2dd6845693555431896c
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Oct 8 21:24:56 2017 +0300

    bump version to 3.26.0, update NEWS

 NEWS         |   16 ++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index b1ab7a5..644c965 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,19 @@
+Version 3.26.0
+==============
+- Fix custom background color. (#783168)
+- Fix tray icons when compositing is off. (#788109)
+- Remove "Connect to Server..." applet.
+- Updated translations:
+  Dušan Kazik (sk), Gianvito Cavasoli (it), Jordi Mas (ca),
+  Kristjan SCHMIDT (eo), Matej Urbančič (sl), Piotr Drąg (pl),
+  Stas Solovey (ru).
+
+Version 3.24.1
+==============
+- Don't add module symbols in global name space. (#770795)
+- Updated translations:
+  Piotr Drąg (pl).
+
 Version 3.24.0
 ==============
 - Improve the tasklist style. (Antonio Ospite; #769012)
diff --git a/configure.ac b/configure.ac
index 28d7c69..e2b830c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Define version info
 dnl **************************************************************************
 
 m4_define([gp_major_version], [3])
-m4_define([gp_minor_version], [25])
+m4_define([gp_minor_version], [26])
 m4_define([gp_micro_version], [0])
 m4_define([gp_version], [gp_major_version.gp_minor_version.gp_micro_version])