Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  2a30ee52cb50c0aebde1f1a1aa47c38a2baf0fae

Allow serializers to use upper and/or lower case ids, as needed.

Since Lua code may perform lookups on serialized entities using hardcoded
lower case property IDs, we need to retain support for this when moving to
upper case IDs.

Change-Id: I76f220fd1fb7b31b06b04011c82cc460b3a087aa