Pass additional arguments to the PhabricatorDaemonEventListener.
Summary: Include non-standard command line arguments in the daemon.didLaunch event.
Test Plan: See D9607.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9613