[gutvol-d] Co-operative proofreading

Inspired by Mr. Frank, Mr. Adcock, Ms. Miske and Mr. Morasch, I decided to try to implement my own vision of a co-operative proofreading process. Anyone wanting to watch me flail about can follow my work at www.ebookcooperative.com. Login as guest, no password. Apparently the engineers at Microsoft have not yet figured out how to implement CSS percentages, and I haven't had the time (or inclination) to build an Internet Explorer-aware implementation yet, so visitors would be advised to use a different browser.