* README proposal.
* First pass at implementation of proposal on Footer and Header. Footer could use some work.
* Cleanup, and readme additions
* First pass at basic modal
* Modal open / close
* Modal close on esc key.
* Freeze body scrolling when modal is open.
* Use the index bestowed upon me.
* No close on shade click
* Only render children if modal is open. Also, dont show cursor on shade
* Use flexbox for simpler content height / scroll behavior.
* type modal, fix body scroll when mounted opened
* Modal width is sized by content, not hard coded sizes.
* Remove size from flow prop types.
William O'Beirne