Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  c75dbe371a2d319e0afc65f61b9ce3444a270917

Implemented changes for getting into translatewiki

Migrate to JSON i18n
All Keys lowercase
Renamed key
Changed messages article -> page
Added GENDER support to message in all languages

Change-Id: Ide218e065b8bfb6057386be6a53839e568080de9