* Allow Portal to take title & buttons props
* Fix tests
* Portal consistent in screen center
* Allow hiding of Close (e.g. FirstRun usage)
* Set overflow style on body based on open
* Don't lock scroll for child popups (overlaps)
* Override buttons to be white
* Expose ~/ui/Modal/Title as re-usable component
* Use ~/ui/Title to render the Title
* Update tests
* Added a portal example with buttons and steps
* Address PR comments
* Fix AddressSelect with new container withing container
* Move legend to "buttons"
* AddressSelect extra padding
