Sorry, forgot to do the new attributes. I've not bothered with the fleet of ARIA[*] attributes here, as I haven't spent any time looking at ARIA and suspect that it's a moveable feast at present anyway.
async autocomplete autofocus contenteditable contextmenu draggable formaction formenctype formnovalidate formtarget list manifest max min novalidate pattern ping placeholder required reversed role sandbox scoped seamless sizes spellcheck srcdoc step
* http://www.w3.org/WAI/PF/aria/