Added sms_utils, three files that handle sms for the demo.
sms_server is a small http server that
    -takes sms incoming calls and does something (nothing yet) with them.
    -takes an outgoing request and sends it to send_sms_GOIP.   Hardware specific in that it uses a "line" on the goip -- this should be changed to a "station".
send_sms_GOIP
    -hardware interface, uses the built-in web configure tool, not yet able to confirm a send.
handle_chat
    -a freeswitch python script called whenever an sms is received via sip.  Currently receiving via GOIP only, but ostensibly generalizable.
    -calls sms_server when it receives something.