ra_serf: fix property_tests 7: match the error message on out-of-date  directories with that printed by ra_neon.
ra_serf: fix property_tests 7: match the error message on out-of-date 
directories with that printed by ra_neon.

* subversion/libsvn_ra_serf/commit.c
  (checkout_dir): add custom handling of the apr error SVN_ERR_FS_CONFLICT. 
   Raise ra_neon 'compatible' error message.

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