Updated mediawiki/extensions
Project: mediawiki/extensions/CommonsMetadata  b8eadcf4be3cc8775f1dc0a299d7e0e6fb8d8192

Must declare function parameter as pass-by-reference

Otherwise you spend an hour tracking down why the hell it doesn't work on PHP 5.4.17. ;)

Change-Id: I3b047cc686f97b054cfed1ab0052a590d890f076