Log Message:
Update libwnck to 2.26.0.

2.26.0
======

 Translators

  - Amitakhya Phukan (as)
  - Petr Kovar (cs)
  - Kenneth Nielsen (da)
  - Jennie Petoumenou (el)
  - David Lodge (en_GB)
  - Pauli Virtanen (fi)
  - Ankit Patel (gu)
  - Gil Osher (he)
  - Luca Ferretti (it)
  - Ani Peter (ml)
  - Sandeep Shedmake (mr)
  - wadim dziedzic (pl)
  - Adi Roiban (ro)
  - Nickolay V. Shmyrev (ru)
  - I. Felix (ta)
  - Krishna Babu K (te)
  - Baris Cicek (tr)

2.25.91
=======

 Misc

  - Require glib 2.16.0

 Translators

  - Yavor Doganov (bg)
  - Runa Bhattacharjee (bn_IN)
  - Sílvia Miranda (ca)
  - Rhys Jones (cy)
  - Andre Klapper (de)
  - Dawa pemo (dz)
  - Kostas Papadimas (el)
  - David Lodge (en_GB)
  - Guillaume Savaton (eo)
  - Jorge González (es)
  - Iñaki Larrañaga Murgoitio (eu)
  - Pauli Virtanen (fi)
  - Ankit Patel (gu)
  - Rajesh Ranjan (hi)
  - Gabor Kelemen (hu)
  - Takeshi AIHANA (ja)
  - Shankar Prasad (kn)
  - Changwoo Ryu (ko)
  - Žygimantas Beručka (lt)
  - Arangel Angov (mk)
  - Sanlig Badral (mn)
  - Hasbullah Bin Pit (ms)
  - Wouter Bolsterlee (nl)
  - Manoj Kumar Giri (or)
  - Amanpreet Singh Alam (pa)
  - Vladimir Melo (pt_BR)
  - Duarte Loreto (pt)
  - Vasiliy Faronov (ru)
  - Steve Murphy (rw)
  - Pavol Å imo (sk)
  - Слободан Д. \ 
Средојевић (sr)
  - Theppitak Karoonboonyanan (th)
  - Maxim Dziumanenko (uk)
  - Clytie Siddall (vi)
  - Deng Xiyue (zh_CN)
  - Chao-Hsiung Liao (zh_HK)
  - Chao-Hsiung Liao (zh_TW)

2.25.5
======

 Fixes

  - Make libwnck compile with gnome-common DEPRECATED variables (Vincent)
  - Use C_() instead of Q_() (Matthias Clasen)

 Translators

  - Andre Klapper (de)
  - Jorge González (es)
  - Mattias Põldaru (et)
  - Claude Paroz (fr)
  - Luca Ferretti (it)
  - Vladimir Melo (pt_BR)
  - Matej Urbančič (sl)
  - Daniel Nylander (sv)

2.25.3
======

 Fixes

  - Use single include for GTK+ (Pedro Fragoso)
  - Fix compiler warning (Vincent)