[Twisted-Python] clientTCP

[Moshe Zadka]

The following files still use clientTCP, and shouldn't:

./doc/examples/ftpclient.py
./doc/examples/qtdemo.py
./twisted/im/ircsupport.py
./twisted/im/tocsupport.py
./twisted/mail/relaymanager.py
./twisted/names/dns.py
./twisted/protocols/irc.py
./twisted/protocols/oscar.py
./twisted/protocols/socks.py
./twisted/protocols/toc.py
./twisted/spread/ui/tkutil.py