Levi (2014-10-22)

_Features_

• Send call to voicemail or external number
• <Dial> <Number> example XML in README.md
• <Dial> <Voicemail> example XML in README.md
• Update examples

_Resolved issues_

• XML response not understood by sipgate.io's server (#6)
• Content-Type: text/xml support (#7)
• Chunked encoded response is not processed (#8)
• from and to not always correct (#9)