Updated mediawiki/skins
Project: mediawiki/skins/BlueSpiceSkin  9d1a13491e32d47d7312f11139e6c6bb889c66e1

Moved some not skin related things to BSFoundation

 - Those images are not skin related and need to be set when variable is
   registred

Change-Id: Ia38d12adccd3f9e769660f9aacca8d6eb7a8352a