paper-radio-group
=================

`paper-radio-group` allows user to select only one radio button from a set.
Checking one radio button that belongs to a radio group unchecks any
previously checked radio button within the same group. Use
`selected` to get or set the selected radio button.

Example:

```html
<paper-radio-group selected="small">
  <paper-radio-button name="small">Small</paper-radio-button>
  <paper-radio-button name="medium">Medium</paper-radio-button>
  <paper-radio-button name="large">Large</paper-radio-button>
</paper-radio-group>
```

See <a href="https://github.com/PolymerElements/paper-radio-button">paper-radio-button</a> for more
information about `paper-radio-button`.