Updated mediawiki/skins
Project: mediawiki/skins/BlueSpiceSkin  b6c824bc321186716dc1bb3a43cb190627d3309c

BS 223: Facelift

* made several improvements to fonts + colors
* added some padding and margin
* added new font

Change-Id: Iab85d294bf621f07ffb3b1182fe0c9e623140a51