Update oojs to v1.0.4

Changes since v1.0.2:
* Added oo.getHash
* Added oo.Registry
* Added oo.Factory
* Bug fixes for oo.EventEmitter

Code:
  http://trevorparscal.github.io/oojs/releases/oojs-1.0.4.js

Release notes:
  https://github.com/trevorparscal/oojs/blob/v1.0.4/History.md

Change-Id: Iafc49bd148a50b19e5e9f0a0add056ad858533de