fix typo in comment
Bump version to 3.9.0
add lastResponse attribute to the client var
snake case last response
Bump library to 3.9.1
fix warning in sphinx
Use HTTP status code instead of status in JSON body

Sometimes the HTTP status is not included in the JSON body,
we should report the HTTP status code in the TwilioRestException,
not the one in the body of the message.
refactor test
refactor twilio tests
Refactor some tests to use common http helpers
Bump library to 3.10.0
recovering file somehow undid the merge.
Document Sip TwiML
fix sip example
make the sip example pretty
forgot header
Fix typo in filter recordings example code.
Merge pull request #121 from alexcchan/master

Fix typo in filter recordings example code.
return 'static' object in _call method

sometimes I want to override __call method for some reason. For example I always want to call say method with language option "'language' => 'ja-jp');".
Merge pull request #122 from lancardcom/master

return 'static' object in Services_Twilio_Twiml::_call method