R1:607fca98df12

render_tag -> tag: Maniphest summary view, setup issue view

Summary: One trivial, one not-so-trivial.

Test Plan: Viewed maniphest list; saw expected output.

Reviewers: vrana

Reviewed By: vrana

CC: aran

Maniphest Tasks: T2432

Differential Revision: https://secure.phabricator.com/D4725