fewer bytes when exchanging the file-list index values.

mode.

--delete default.

(since the reason I had separated it no longer exists).

- F_UID() is now defined to return a uid_t value.
- F_GID() is now defined to return a gid_t value.

  implied directories is working.

  public functions.
- Made add_uid() and add_gid() return the name or NULL.

- Changed some function names to make them more consistent.

incremental-recursion mode.

- Set incremental-recursion mode, if possible.
- Protocol 30 gets generator->sender messages enabled.

- Allow -H to be repeated.

we're talking protocol 30 or above.

source directory (provided by Art Haas).

complain and die.