Summary:
Fixes a weird string in the flag dialog
Migrated to ObjectItemView (Cards)
Removed filters from side nav (unnecessary)
Go away, go away, panel. Nobody will miss you.
Adding sorting/ordering to Flag (separation like in Maniphest ordering still remaining)
Hacking our way in DifferentialRevisionListController thanks to panels (who added `->setFlush()` btw? It's awesome!)
Test Plan: I would not dare to stand here if it did not work.
Reviewers: epriestley, chad, btrahan
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D5449
9a6c912ef6