R1:c7a7574f0c8e

Remove oneline feed story

Summary: People seem confused and it is a little inconsistent. Also added other app icon types.

Test Plan: Viewed a number of feed stories.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9320