Avoid some 'const' warnings by making a private function return a non-const skel referenced from a const skel.
Avoid some 'const' warnings by making a private function return a non-const
skel referenced from a const skel.

* subversion/libsvn_wc/conflicts.c
  (conflict__get_operation,
   conflict__get_conflict): Return non-const skels as output argument.

  (svn_wc__conflict_skel_add_prop_conflict): Fix double commenting.
  (svn_wc__conflict_read_text_conflict,
   svn_wc__conflict_read_prop_conflict): Update callers.

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