message: Fix deviceverifybuttons
  Use DeviceInfo from deviceVerificationChanged event rather than calling
  non-existent getStoredDevice
diff: @@ -43,9 +43,9 @@ export default React.createClass({
  cli.removeListener("deviceVerificationChanged", this.onDeviceVerificationChanged);
  },
  - onDeviceVerificationChanged: function(userId, deviceId) {
  + onDeviceVerificationChanged: function(userId, deviceId, deviceInfo) {
  if (userId === this.props.userId && deviceId === this.props.device.deviceId) {
  - this.setState({ device: MatrixClientPeg.get().getStoredDevice(userId, deviceId) });
  + this.setState({ device: deviceInfo });
  }
  },
  