The Ways I'll Improve FeedParser

It seems like a good jumping off point. I'll improve it with various advanced features I've already implemented elsewhere like:
- Conditional GETs.
- Authentication, (cURL example)
- Accessing all feeds with a simplified interface.
Conditional GETs. Mark already did it.Authentication. Mark already did it.Content Normalization. (That's what I meant.) Mark already did it.
There's nothing left for me to do, but the stuff I can't do. Make it pretty.