refreshing the iframe *basically* works now?
preliminary support for HAML and HTML in addition to Markdown
HAML is working pretty well, stylesheet support on its way
saving custom stylesheets is actually working—still need to make it live-update, though
gah, you sloppy bastard
got logic (basically?) working for when to do a DOM-only vs. full-page refresh
some refactoring and stuff (I swear the meaningful commit message will start coming soon)