Socorro:Releases/42

Bug 857055

No downtime required. Middleware needs to be restarted after this change.

Edit the configuration of the middleware so it knows where elasticsearch lives. The file is /etc/socorro/common.conf (I assume it is modules/webapp/files/socorro-production/etc-socorro/common.conf in SVN), and here is the diff:

-export elasticSearchHostname=''
+export elasticSearchHostname='socorro-es.webapp.phx1.mozilla.com'