MARK tickets: the StrictMark renderer (beagle/mark)

Tickets on the beagle/mark StrictMark→HTML renderer (C + ragel MARKE lexer): structure, nesting, budgets. Spec is StrictMark; wiki/blog rendering gaps that are page-content-side stay under WIKI. Each entry is one active ticket; it drops off once the ticket lands. The fix-and-land method is Issues.

Active tickets