Removed unused C function from _pjsip.pyx

darcs-hash:20081201172808-58103-0d01780265e15a6971931039a8f169d16c23ae56
Added TCP transport to PyPJUA and added local_tcp_port init and runtime option to PJSIPUA for it, renamed local_port to local_udp_port, changed semantics to make None mean disable transport and 0 mean choose a random port, added transport attribute to Route object

darcs-hash:20081201172847-58103-55d2ca88af9a0c17e3be72117148725cfae9bdb8