Rough cut of Project profile improvements

Summary:

• Old page was useless and dumb.
• New page looks a little less bad, functions a little less poorly.
• Still lots of work to be done.

Test Plan:

• Viewed a project.
• Clicked all the links on the left nav.
• Here is a screenshot:

https://secure.phabricator.com/file/view/PHID-FILE-4buzquotb3fo4dhlicrw/

Reviewers: btrahan, jungejason

Reviewed By: jungejason

CC: aran, jungejason

Maniphest Tasks: T681

Differential Revision: 1246