Moderize Projects

Summary: Add mobile menus, PHTs and clean up panels. There is a litle more to do, but will tackle feed, etc in another diff.

Test Plan: Test Project filters on Chrome and iOS browser.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4931