[metacity] bump version to 3.26.0, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit ecd154902c85e1183a82081fec19c3b4cf391ff7
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Oct 2 22:22:01 2017 +0300

    bump version to 3.26.0, update NEWS

 NEWS         |    7 +++++++
 configure.ac |    4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index d6259ca..c1f5bc0 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+Version 3.26.0
+==============
+- Fix memory leak when changing theme (#788078)
+- Fix crash when struts change during grab operation (#603632)
+- Updated translations:
+  Anders Jonsson (sv), Balázs Úr (hu), Мирослав Николић (sr, sr@latin).
+
 Version 3.25.2
 ==============
 - Fix appmenu button size in metacity-theme-viewer
diff --git a/configure.ac b/configure.ac
index caae603..9ec8164 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,8 +3,8 @@ dnl Define version info
 dnl **************************************************************************
 
 m4_define([m_major_version], [3])
-m4_define([m_minor_version], [25])
-m4_define([m_micro_version], [2])
+m4_define([m_minor_version], [26])
+m4_define([m_micro_version], [0])
 m4_define([m_version], [m_major_version.m_minor_version.m_micro_version])
 
 dnl **************************************************************************