Update gnome-menus to 2.26.0.

==============
Version 2.26.0
==============

  Translators

* Reşat SABIQ (crh)
* Suso Baleato (gl)
* Rajesh Ranjan (hi)
* Francesco Marletta (it)
* Manoj Kumar Giri (or)

===============
Version 2.25.91
===============

  Translators

* Changwoo Ryu (ko)
* Raivis Dejus (lv)
* Sandeep Shedmake (mr)
* Горан Ракић (sr)
* Daniel Nylander (sv)
* Woodman Tuen (zh_HK)
* Woodman Tuen (zh_TW)

==============
Version 2.25.5
==============

  Misc

* Use gnome-common macro to define DEPRECATED build variables (Vincent)

  Translators

* Reşat SABIQ (crh)
* Saudat Mohammed (ha)
* Sylvester Onye (ig)
* Fajuyitan, Sunday Ayo (yo)

==============
Version 2.25.2
==============

  Fixes

* Fix a critical warning in the python binding for monitoring a file
  (Vincent)

  Misc

* Ship a gnome-menus-ls.py script that is an example of python bindings
  and that can be used as a replacement for gnome-menu-spec-test
  (Vincent)

(jmcneill)