added sip_msrp_client.py (only inviting other work)

darcs-hash:20081106123803-b2873-18708fca674b00d23445d51a78af1798aaaa9b87
added example how to restore terminal's sanity in console.py and consolebuffer.py

darcs-hash:20081107091224-b2873-6013ff4b8ce94653689e803719668cfb63b864e0