Add Date elements

Ok, so we got some of the most common html5 input type in :-D, now lets do the not so common ones ;-)

This issue is for the date input types. There's a couple of them. So I figure is better in a separate issues.

Uhm the types are data, datetime, datetime-local, month, week, and time :-o.

I'll see if I can whip up a patch tomorrow with support for these types.