Twenty Thirteen: use new HTML5 comment form argument

[lancewillett]

Once #15080 changes are in core, update Twenty Thirteen to include the new html5 argument in comment_form(). Then adjust CSS selectors if needed.

[obenland]

Patch is based on 15080.6.diff​​

[lancewillett]

Replying to obenland:

Patch is based on 15080.6.diff​​

​http://core.trac.wordpress.org/attachment/ticket/15080/15080.6.diff

Working well in testing. So happy to see this improved markup!

[lancewillett]

@obenland How do you feel about changing:

#commentform label[for="author"],
#commentform label[for="email"],
#commentform label[for="url"],
#commentform label[for="comment"] {
	float: left;
	padding: 5px 0;
	width: 100px;
}

to just:

#commentform label {
	float: left;
	padding: 5px 0;
	width: 100px;
}

[obenland]

Replying to lancewillett:

@obenland How do you feel about changing [labels]

+1

[lancewillett]

Simplify comment form label selectors

[lancewillett]

In [23690] Twenty Thirteen: use new HTML5 comment form argument, and adjust CSS selectors a bit. Closes #23702, see #15080.