Summary: serving up for some feedback -- does anything fancy need to happen when new messages load (say highlight em and fade the highlight out) or just scrolling down okay? in JS I have a TODO about how come it doesn't work; that code works okay in my console if I print out various debugging values and enter them in manually.
Test Plan: pontificate with myself; note new message and message entry updates properly. pontificate as different user then as myself; note two messages load and message entry updates properly. pontificate as a user who isn't the last to reply; note new message and message entry updates properly
Reviewers: epriestley, chad
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2522
Differential Revision: https://secure.phabricator.com/D5214
