Let svn_cl__resolve_postponed_conflicts() tell the caller whether it
resolved all the conflicts.  We don't use that yet, but we will soon.  And
some other small tweaks the 'svn' conflict notification code.

* subversion/svn/cl.h,
  (svn_cl__resolve_postponed_conflicts): Return a flag indicating whether
    all conflicts were resolved.
  (svn_cl__notifier_reset_conflict_stats): New function.
  (svn_cl__print_conflict_stats): Rename to
    svn_cl__notifier_print_conflict_stats() and s/pool/scratch_pool/ and
    s/notify_baton/baton/ (the last being a follow-up to r1446746.

* subversion/svn/conflict-callbacks.c
  (get_postponed_conflicted_paths): Simplify: remove a special-case return.
  (svn_cl__resolve_postponed_conflicts): Implement the extra parameter, and
    remove the special-case return.

* subversion/svn/notify.c
  (svn_cl__notifier_reset_conflict_stats): New function.
  (svn_cl__print_conflict_stats): Rename to
    svn_cl__notifier_print_conflict_stats() and s/pool/scratch_pool/.

* subversion/svn/merge-cmd.c
  (svn_cl__merge): Update calls to svn_cl__print_conflict_stats().

* subversion/svn/patch-cmd.c
  (svn_cl__patch): Same.

* subversion/svn/switch-cmd.c
  (svn_cl__switch): Same.

* subversion/svn/update-cmd.c
  (svn_cl__update): Same.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1446794 13f79535-47bb-0310-9956-ffa450edef68