Metapost: Minor cleanup

Many of my articles have small captioned images that show up, when you visit the site, offset next to a paragraph, nicely formatted. I just realized, however, that since the RSS feeds don’t really support stylesheets, these look completely wrong to anyone who is reading the site via a newsreader. So I’m fixing them, which may make a number of old posts appear to be marked as new. Sorry.

Also, although I’ve got I format that seems to work well in most RSS aggregators, the images still look wrong on bloglines. If you’ve got a bright idea about the right way to fix this, please send email to blog -at-