Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  1c29cd9fe07d563ed4ba0103f53efecd401d82ec

Implemented changes for translatewiki

Moved to Json i18n files
Added rights message
Added periods to messages
Fixed some typos
Changed extensions description

Change-Id: Ib493680aa8cdaae988a3ff3788ef6b0ec4e71df2