fix(input): adds support for name property for input element

[robertmesserle]

R: @jelbourn @hansl
closes #446

[jelbourn]

LGTM, you can rebase and merge

[jelbourn]

For the time being, this actually needs to be attr.name so that Angular does add an name="null" attribute when it's absent.

[robertmesserle]

@jelbourn rebased

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