Bug 1019416 -- Implements new TokBox SDK.
Bug 1019416 -- Verify the ability to override the TokBox api server.
Alexis review.
Define a default tokbox serverURL
Update opentok library usage
Update tokbox tests
Merge pull request #87 from mozilla-services/bug/1019416-tobox-sdk

Bug 1019416 -- Implements new TokBox SDK.