Updating the doc string for the `signed-out` event to be separate.

The doc string looked like it belonged to the handler for the auth result.
Updating the styling for the light theme when signed in.
Adding Randy Merrill to the authors section.
Merge pull request #40 from Zoramite/doc-event

Updating the doc string for the `signed-out` event to be separate.
Merge pull request #41 from Zoramite/theme-signed-out

Updating the styling for the light theme when signed in.
Adding the paper-ripple to the signin element.
Fixing the ripple to be appropriate for the themes.
Adding the missing focusable dependency.
Updating with support for a `noink` attribute.