[whatwg] Diffs of whatwg specs

[dolphinling]

Are there diffs for each time the specs are updated anywhere? It'd be 
nice to see exactly what changed recently.

Also, the diff from current to call for coments is a bit broken. In 
places where one paragraph was entirely replaced by another, it's broken 
up by words like "the" and "to", which makes it much harder to read. Is 
there any chance of a better version?