Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  b18bc4d2f56e34c30738848e9ec03ad6d5a085fb

Load messages for licensing option of UploadWizard

Follow-up of I4397c70ff885c75 where loading the messages has been forgotten.

Change-Id: I7f55c50c6562fb197ce030b07d7dd24d369db7d7