Add test for weekBind()
Implement weakBind() and once()
Start adding jsdoc comments
Add alias for emit; trigger. Return this from weakBind.
Update the readme.

- Add Class: LucidJS.EventEmitter
- Add eventEmitter.bind
- Add eventEmitter.weakBind
- Add eventEmitter.unbind
- Add eventEmitter.emit
- Add eventEmitter.flag
- Begin eventEmitter.unflag
- Begin eventEmitter.pipe
- Begin eventEmitter.unpipe
- Begin eventEmitter.listeners
- Begin eventEmitter.unbindAll
- Begin eventEmitter.removeAllListeners