Upgrade some deps.

Not sure if you want this ...

- CryptoJS to v3.1.2
- EventEmitter to v4.1.1
- OTR.js to v0.1.8

There was a backwards compatibility issues with CryptoJS v3.0.2 that needed to be worked around.

Also, don't forget to review this first,
https://github.com/arlolra/otr/commit/8a1c8fa845f3120669c1177b34d61edd0a7194c0