Rename a few members of a private commit struct. Reverse a few booleans to
make it clearer how they are handled.

There should be no functional changes, although a few variables have
different values.

* subversion/libsvn_wc/adm_ops.c
  (committed_queue_item_t): Update a few member names. Add more documentation.
  (process_committed_leaf,
   process_committed_internal): Rename arguments to match committed_queue_item_t.

  (svn_wc_queue_committed4): Update initialization.
    Update caller.
  (svn_wc_process_committed_queue2): Update usage. Remove bail out as the
    post processing that could be optimized is gone.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1630489 13f79535-47bb-0310-9956-ffa450edef68