Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  343976189c848b7dc2fc3b48b83c3d444a2a6492

Implemented changes for translatewiki

Moved to Json i18n files
Changed all log messages to new style
Improved -action and -right messages
Improved some messages in punctuation, consistency

Change-Id: Ide836cbb5a2fda9b99bca2be5526f207864f73e3