### `Button`

Link styled as a button, works with `react-router` by specifying a `to` prop, or a normal `<a>` by specifying a `href` or `onClick`.

Props:

* string `to`: react-router target
* string `href`: a tag target

Style modifier props:

* bool `primary`
* bool `secondary`
* bool `success`
* bool `link`

Size modifier props:

* bool `small`
* bool `mini`