Added Area-HTML, Triaged labels.

Added this to the M7 milestone.

Should be able to add a common interface for these.

Removed this from the M7 milestone.
Added this to the M8 milestone.
Removed Type-Defect, Priority-Unassigned labels.
Added Type-Enhancement, Priority-Low labels.

Issue #4113 has been merged into this issue.

Added Community-StarterBug label.

Basic API set that I believe would be on this:
  String formTarget;

  bool disabled;

  String name;

  bool get willValidate;

  bool checkValidity();

  void setCustomValidity(String error);

  String get validationMessage;

  ValidityState get validity;

Elements which this would apply to: button fieldset input keygen object output select textarea
from:
http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#category-listed

This comment was originally written by @budde377

It would be really nice to get

   String value

in this as well, even through this might mean omitting some of the elements you mention.

Adding value would bump the types down to:
button input output select textarea

I'm going to move this out of M8 as it's easy enough to add and I think we should consider it a bit more.

Removed this from the M8 milestone.
Added this to the Later milestone.

Removed Area-HTML label.
Added Area-Library, Library-Html labels.

Removed this from the Later milestone.
Added Oldschool-Milestone-Later label.

Removed Oldschool-Milestone-Later label.