added Jasmine & Nock, this will give you an example of the proposed changed in testing design, lot of irrelevant pushes while i navigated my way around Travis CI

Sorry about all the commits I will squash in future, I needed them to trigger Travis.

Please configure Travis on the repo and publish the badge to the readme. Something like this.

[![Build Status](https://travis-ci.org/tbenade/yammer-rest-api-client-node.png?branch=master)](https://travis-ci.org/tbenade/yammer-rest-api-client-node)