Extended the protocol-30 info-passing code at startup, and use it to

Extended the protocol-30 info-passing code at startup, and use it to
tell the client if the server can set the times on a symlink (both
the server->client byte and the client->server use of -e).  Make use
of this info to allow the proper output of the 't' flag when rsync
can set the time on a symlink (and we're talking protocol >= 30).
Added output of "[no] symtimes" info in the --version message.
Fixed the itemize.test so that it works when rsync believes that it
can set the time of a symlink, but it can't really do it.