Updated mediawiki/skins
Project: mediawiki/skins/BlueSpiceSkin  0df2e97daaacd2ba5f99fdd92f6b5c4997f4cb4d

BlueSpiceSkin/ExtendedSearch: Added some CSS

This is kind of experimental. The one thing that should be in, is the
fixed width of the menu. All the other stuff like rounded corners and
borders are just a test.

Any feedback welcome.

Change-Id: If1480c50af34d1bd9872d22780f76db7f04da87e