On the 'move-tracking-2' branch: Store metadata in rev-prop in current revision,
rather on revision 0.

Although some of the metadata need not be per-revision, the path mappings
belong to a specific revision.

* subversion/svnmover/svnmover.c
  (fetch_repos_info, store_repos_info): Use the head revision, not r0.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/move-tracking-2@1627521 13f79535-47bb-0310-9956-ffa450edef68