Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  e95aff2252f62913846c0f7c234d12a896c8fbeb

Rewrite of NamespaceNuker

All options of NamespaceNuker did not work or not correctly. I rewrote the
code of it because it is much easier to use MediaWiki. The benefit is that
many steps are done by MediaWiki and there is no need that we do them.

 * Fixed bug with not correctly shown message in remove dialog
 * Corrected names of alert windowalert windows

Change-Id: I65c5a3ec7440563a3373fa1f572b33f312befa50