re-structure app around StyleDoc document structure, not CSS structure
implement revisting a context to add more documentation
handle switching back and forth documenting patterns
convert PatternView to new StyleDoc (JsonML) structure
update CSS documentation to new Styledoc rules
copy rules into JSONML
pass examples through JSONML
fix bug in definition lookup within pattern
fix bug: failing to find the active example to scroll to.
avoid re-rendering the same pattern when routing
fix openInStyleboard href in embed mode
process markdown in StyleDoc comments
allow h* outside header (for markdown support)
Typography changes for allowing sectioning in addition to pattern sections