Updates to the webAPI node.js library

Fixes for this library are shown below:

1)Added interdigitTimeout, sensitivity, speechCompleteTimeout and  speechIncompleteTimeout to the Ask method

2)Added allowSignals to the call method

3)Added allowSignals and interdigitTimeout to the conference method

4)Added allowSignals and interdigitTimeout to the record method

5)Added transcriptionID, transcriptionEmailFormat and transcriptionOutURI to the startRecording method

6)Added allowSignals, interdigitTimeout and ringRepeat to the transfer method

7)Added the wait function