Update libwnck3 to 3.24.1

==============
Version 3.24.1
==============

  Fixes

  * Fixed regression causing not working pin window (Marco Trevisan)
  * Fixed Localedir (Alberts Muktup��vel)

==============
Version 3.24.0
==============

  Fixes

  * bump GTK+ required version to 3.22.0
  * Various refactoring to remove deprecated code (Alberts Muktup��vel)
  * Add an option to disable the tasklist scroll event (Moritz Bruder)
  * Add wrap-on-scroll option for WnckPager widget (Moritz Bruder)
  * wnck-image-menu-item: fix memory leak (Alberts Muktup��vel)

  Translators

  * Baurzhan Muftakhidinov (kk)
  * Inaki Larranaga Murgoitio (eu)
  * Piotr Dr��g (pl)
CVs: please use "PR category/123" to have the commitmsg appended to PR 123

(prlw1)