<button> should allow for attributes

[cossssmin]

How can we reproduce this bug?

<button href="#" class="large" align="right">Button Label</button>

What did you expect to happen?

Since <button> generates a table, I would expect it to have the align="right" attribute, just like <columns> do.

What happened instead?

The generated table does not contained the passed attribute.

What email clients does this happen in?

Viewing HTML source, no need to email client testing.

This would be useful for aligning buttons on their own, no need to complicate things with columns. not just alignment, any HTML or custom attributes one might need to pass.

[cossssmin]

Looks like someone already created a PR, almost 3 months ago: @yvmarques, foundation/inky#61

[rafibomb]

Merged foundation/inky#61