Generate bindings for HTMLButtonElement.
Generate bindings for HTMLDataListElement.
Generate bindings for HTMLDirectoryElement and HTMLEmbedElement
Generate bindings for HTMLFieldSetElement.
Generate bindings for HTMLFontElement.webidl
Generate bindings for HTMLFrameElement.
Generate bindings for HTMLFrameSetElement.
Generate bindings for HTMLHeadingElement.
Generate bindings for HTMLMapElement.
auto merge of #776 : jdm/servo/nodesnodesnodes, r=yichoi

r? to anybody. This should be pretty mechanical to review.