Fix blame test #3 by converting it to use the new XML parser paradigm.
Fix blame test #3 by converting it to use the new XML parser paradigm.

* subversion/libsvn_ra_serf/blame.c
  (blame_context_t): Remove unused parameter.
  (svn_ra_serf__get_file_revs): Switch from _wait to _one and have our parser
  set the handler's done flag so it works with run_one.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion