ra_serf: Correctly run an update that deletes files.
ra_serf: Correctly run an update that deletes files.

* subversion/libsvn_ra_serf/update.c
  (start_report): Handle delete-entry tags in returned response.

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