voice callback not using interface
updating for pr
removing old file
add sms GET
remove MsgSid type
fixing issue
Merge branch 'master' of https://github.com/natebrennand/twilio-go into voice
parse StandardRequest in common
changing to proper types
renaming and adding jsonPrice parse test
add GET tests to common
checking if string is instantiated B4
Merge pull request #11 from natebrennand/sms_get

Sms get
Merge pull request #12 from natebrennand/voice

Voice Callback
add sms list and tests
adding get call
updating common response, other small things
updating common response, other small things
Merge pull request #14 from natebrennand/voice

adding get call
properly add query to sms list query