Add ability to disable retry
Add on events to hook directly into SockJS
Add disconnect method
Fix use of `this.socket.readystate` to `this.socket.readyState` [see source][1] and `this.socket.OPEN` to `SockJS.OPEN` (was having issues with the prototype).

[1]: https://github.com/sockjs/sockjs-client/blob/master/lib/sockjs.js#L44 "sockjs.js"
Update apiconsole and angularjs example with bootstrap style and more features.
Merge pull request #16 from jrschumacher/js-features

Various javascript features