Distinguish between "Remote URI" and "Clone URI" in Repositories
Hosted repositories have muddied this distinction somewhat. In some cases, we only want to use the real remote URI, and the call is only relevant for imported repositories.
In other cases, we want the URI we'd plug into git clone.
Move this logic into PhabricatorRepository and make the distinction more clear.
Test Plan: Viewed SVN, Git, and Mercurial hosted and remote repositories, all the URIs looked reasonable.
Reviewed By: btrahan
CC: aran, dctrwatson
Differential Revision: https://secure.phabricator.com/D8096