Illustrate the remounting problem.
Using our Express patch, get relative redirects working.
WIP.
Eliminate the hacks needed to get files served from the correct location when the trailing slash is missing. We have patched Express and submitted a pull-request (https://github.com/visionmedia/express/pull/1516) that describes and addresses a problem with dotted relative redirects. (For now, that fork satisfies the Express dependency.)