message: Export Reakit primitives
diff: -export { Button } from './Button';
  -export { Buttons } from './Buttons';
  -export { Spinner } from './Spinner';
  +export { default as Box } from 'reakit/Box';
  +export { default as Block } from 'reakit/Block';
  +export { default as InlineBlock } from 'reakit/InlineBlock';
  +export { default as Flex } from 'reakit/Flex';
  +export { default as InlineFlex } from 'reakit/InlineFlex';
  +export { default as Grid } from 'reakit/Grid';
  export { default as theme } from './theme';
  export { default as ThemeProvider } from './theme/ThemeProvider';
  +
  +export { Button } from './Button';
  +export { Buttons } from './Buttons';
  +export { Spinner } from './Spinner';
  