Update HISTORY for 2.0 changes.
Update README to point at 1-x-stable as well.
HISTORY.md -> CHANGELOG.md

Let's start fresh. Most people are going to look for a CHANGELOG, not
history.
Removing some cruft, and making CRUFT.md

http://www.confreaks.com/videos/1121-gogaruco2012-cruft-and-technical-debt-a-long-view
First draft of 2.0 README