E-book formatting tutorial users: I am a dork.

Several corrections were made to the CSS file provided for the tutorial, and guess who forgot to upload the updated files?

If you’re using the tutorial, please re-download the updated version.

Feel free to facepalm me as often (and virulently) as desired.

Changes made to the ebookstyle.css file:
Corrected an error in the p.author class.
Trimmed some unnecessary units.