R1:d74b84a729bb

Add a "Project" application

Summary: Move routes into a formal application class.

Test Plan: Checked /applications/, browsed various routes.

Reviewers: vrana, btrahan

Reviewed By: vrana

CC: aran, floatinglomas

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D3181