Updated mediawiki/extensions
Project: mediawiki/extensions/EventLogging  8b8f584213640384b06eb3d2f68e1795e359a825

Log level: WARNING by default, DEBUG w/'--debug'

Logging all SQL was handy when this was a prototype, but it's a little
excessive now, since it essentially duplicates the entire event stream.
This change makes verbose debug output conditional on specifying the
'--debug' command-line parameter.

Change-Id: If10537e242d5dfe62570eea84050e40d3149f9f7