0.3.2 - Tweaks to built-in middleware

Cleaning up some issues I discovered while integrating the latest `combohandler` into our internal tool, mostly around symlink resolution during path rewriting.

`README.md` is a little noisier than it should be, but mostly because I got a bee in my bonnet about respecting the 80(ish) character hard-wrap in a way that minimizes inter-word diff noise. I read a good article advocating this recently, and naturally I can't dredge it up from the global intertron (or my brain, for that matter). :/

I plan on releasing this tomorrow if I don't stumble on anything else in the meantime.