Rename a few enum values for clarity (and to follow convention).
Rename a few enum values for clarity (and to follow convention).

* subversion/libsvn_delta/compat.c
  (action): Capitalize and rename values.
  (process_actions, ev2_delete_entry, ev2_add_directory, ev2_change_dir_prop,
   ev2_add_file, ev2_change_file): Update references.

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