New icons for Projects
Summary: Updates the builtin images, leaves the old choose... icons for now. I'd like to automate this based on icon when creating a project.
Test Plan: Visit edit picture page, pick a few. Purge cache, see new default image.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D18162
