Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaMessages  f54760526f03bd1f222039f57007221a1a750270

Standardise and update global group names

This change adds a few missing global groups and
fixes no longer valid message keys.

Change-Id: Id69b28e1c370e1d6e1360e50394906df4f6c36e8