Summary:
1) make the page title and uri update appropos to selected widget 2) make a behavior actually listen 3) fix the css so the button can always be clicked to edit metadata
Ref T3035 as I was trying to repro the metadata edit bug there and couldn't.
Test Plan: made the window small enought to have all the widgets visible and be in "device mode". noted page title and uri updated correctly from Conpherence and /conphernece/ to Thread Title and /conpherence/$id/ when toggling between thread list and current thread. made the window small enough to have the title and subtitle fields overlap with the edit button.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin, chad
Maniphest Tasks: T3035
Differential Revision: https://secure.phabricator.com/D5754
6c5d98bb5e