Show daemon arguments with `./bin/phd status`.

Summary: Fixes T4735. When running `./bin/phd`, show daemon arguments.

Test Plan:
```
./bin/phd status
PID  	Started                 	Daemon                                            Arguments
12711	May 20 2014, 9:02:52 AM 	PhabricatorRepositoryPullLocalDaemon              []
12716	May 20 2014, 9:02:52 AM 	PhabricatorGarbageCollectorDaemon                 []
12733	May 20 2014, 9:02:53 AM 	PhabricatorTaskmasterDaemon                       []
12768	May 20 2014, 9:02:53 AM 	PhabricatorTaskmasterDaemon                       []
12775	May 20 2014, 9:02:53 AM 	PhabricatorTaskmasterDaemon                       []
12780	May 20 2014, 9:02:54 AM 	PhabricatorTaskmasterDaemon                       []
12838	May 20 2014, 9:02:54 AM 	PhabricatorFactDaemon                             []
13436	May 20 2014, 9:03:23 AM 	PhabricatorRepositoryPullLocalDaemon              ["X","--not","Y"]
```

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Maniphest Tasks: T4735

Differential Revision: https://secure.phabricator.com/D9208