R1:28f3f8bf7bd6

Board feed story - make the task a link too

Summary: looks better, more useful

Test Plan: looked better, was more useful when I observed my feed

Reviewers: chad, epriestley

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D8394