Use the bumped RA layer API log function throughout ra/compat.c.
So far, we don't do anything special for moves but simply count them
as creating log segments etc. as any add-with-history would do.

* subversion/libsvn_ra/compat.c
  (svn_ra__locations_from_log,
   svn_ra__location_segments_from_log,
   svn_ra__file_revs_from_log,
   svn_ra__get_deleted_rev_from_log): use fastest option to traverse history

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1525462 13f79535-47bb-0310-9956-ffa450edef68