Bug 693259 (pref): Remove extraneous commands from pref_list
Bug 693259 (pref): Remove extraneous commands from pref_list

The original creation of this file was a copy from pref.js so I didn't
pick it up, and I've done enough merging since then that rebasing it all
is more work than is worth it imho.

joewalker/gcli,mozilla/gcli,mozilla/gcli,mozilla/gcli,joewalker/gcli