R1:39fa190c15ce

Conpherence - get lots of rooms stuff hooked up nicely

Summary:
Ref T7566. This does a big chunk of what's left

- Main view
- "Rooms" sub header
- 5 Rooms shown at a time, with room you're looking at in the top on page load
- e.g. viewing /conpherence/x/ the room x is at top always
- solves corner case of when you have yet to "join" the room
- "See More" link takes you to application search for rooms you have participated in
- if no rooms, there is a "Create Room" and "Find…