* faster discussion loading, uses materialized view
* threaded discussion support
* navigate between unread messages
test plan:
* use every feature within discussions
Change-Id: I9e89028e5a618c36a57dae958a16b0be73c35baa
Reviewed-on: https://gerrit.instructure.com/9584
Tested-by: Hudson <hudson@instructure.com>
Reviewed-by: Jon Jensen <jon@instructure.com>
Ryan Florence