Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  71c5d5981201db6ff8c229da21ef42d60bc46f54

Removed hardcoded alert window titles

Replaces the hardcoded titles with success or warning message
Changed from passing message to message key in InsertCategory
Extension prefix should be uppercase

Change-Id: I6d509c1ad019e7c7994c6110d69280bf94f5ddd7