Continue making application fixes to Phabricator for changes to %Q semantics

Summary: Depends on D19789. Ref T13217. Continue updating things to use the new %Q-flavored conversions instead of smushing a bunch of strings together.

Test Plan: Browsed around, far fewer errors. These changes are largely mechanical in nature.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13217

Differential Revision: https://secure.phabricator.com/D19790