Updated mediawiki/extensions
Project: mediawiki/extensions/CentralAuth  cff01199aada53b61d43ab8bb907822a77652961

Adding wfWaitForSlaves before we melt the centralauth cluster.

Also fixing OBO error and resetting the users array between iterations.

Change-Id: Idac8c11142f0e64acf088aa4037d00f6b7eecbbc