added the dates with their information to the timeline.

Using this to edit the Timeline. I've put in some text and some dates.

@JacobH1992 @jamesl1001 Are we using icons or images for the timeline?

![eekthye](https://f.cloud.github.com/assets/2169216/2332149/28cde588-a453-11e3-8884-66786ed3dc41.gif)