Conpherence - make conpherence load the bare minimum of data
Summary: also re-enables the updating of the widgets and "cleans up" the javascript a tad. Ref T2867
Test Plan: all sorts of conpherence fun like adding people to threads, adding files, pontificating, etc
Reviewers: epriestley, chad
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2867
Differential Revision: https://secure.phabricator.com/D5595