Common Lisp Markdown -> html converter, using esrap for parsing, and grammar based on peg-markdown.

Currently a bit slow and uses lots of RAM for large documents (particularly when using the top-level doc parser instead of reading documents as a sequence of blocks), but seems to handle the tests from peg-markdown reasonably well.

todo:

• clean up API
• obfuscate mailto: links
• figure out how to automate testing (closure-html + tree-equal? need some way to normalize whitespace though), and add tests
• figure out how to do optional rules (like &{...} from peg/leg), and add common extensions
• optimize grammar
• optimize esrap