Editable HTML, thanks to to-markdown.js
Adding bootstrap-wysiwyg, though to-markdown limits the functions that actually work.
Updating Markdown from both HTML edits and toolbar actions.
Adding WYSIWYG headings and removing lists.

Rich text commands insertOrderedList and insertUnorderedList insert span tags in Chrome, which cause more problems than they solve at the moment.
Adding support for figure/figcaption.