Updated mediawiki/skins
Project: mediawiki/skins/BlueSpiceSkin  cafec132899c92dd20af020ec126ff0c9b08dfd8

Added 'clear:both' to #content

There was an issue when a certain extension was not loaded.
This may be redundant, but it does no harm either.

Change-Id: I917a10a89433a5a6cae96b19a26b3dbb6150724c