R1:314c25365d2d

Drive menu icons from Applications

Summary:
This makes no changes, it just moves the menu icons to the applications instead of hard-coded on the page.

I'm going to try to address some of the angst in T1593 next...

Test Plan: Loaded logged-in / logged out pages. Clicked menu items. Looked at /applications/.

Reviewers: vrana, btrahan

Reviewed By: vrana

CC: aran

Maniphest Tasks: T1593, T1569

Differential Revision: https://secure.phabricator.com/D3146