Summary:
Synthesizes elements of Diffusion's browse view, Confusion's git
support and Phabricator's repository infrastructure to provide a basic browse
view for Phabricator Diffusion.
This is basically a straight port of Confusion but uses Phabricator's
Repository object and uses a real data object instead of arrays.
Test Plan:
Browsed Javelin in Phabricator at a very basic level.
Reviewed By: jwilson
Reviewers: aran, jwilson
CC: jwilson, epriestley
Differential Revision: 58
