Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaMessages  cd8dd769c606b2d003ed48434be983aada62e758

Add grammar forms for Ukrainian

* Added Wikidata and Wikivoyage
* Corrected Wikisource

Patch by Bohdan Melnychuk.

Change-Id: Ibca22284ef0a0adbff06658abc93bdc1eb8f1eee