Summary:
- Add a PhabricatorApplication.
- Make most of the views work well on tablets / phones. The actual "Create" form doesn't, but everything else is good -- need to make device-friendly form layouts before I can do the form.
Test Plan: Will attach screenshots.
Reviewers: btrahan, chad, vrana
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1569
Differential Revision: https://secure.phabricator.com/D3293
