sendRequst Sends a REST Request to the Twilio REST API.
@param path the URL (absolute w.r.t. the endpoint URL - i.e. /2010-04-01/Accounts)
@param method the HTTP method to use, defaults to GET
@param paramMap for POST or PUT, a map of data to send, for GET will be appended to the URL as querystringparams
This method is public for backwards compatibility with the old twilio helper library
@return the twilio rest response