message: add support to activate when pressing Space
diff: @@ -181,7 +181,11 @@ class Select extends React.Component {
  const keyCode = event.keyCode;
  if (open && !this.getInputDOMNode()) {
  this.onInputKeyDown(event);
  - } else if (keyCode === KeyCode.ENTER || keyCode === KeyCode.DOWN) {
  + } else if (
  + keyCode === KeyCode.ENTER ||
  + keyCode === KeyCode.DOWN ||
  + keyCode === KeyCode.SPACE
  + ) {
  if (!open) this.setOpenState(true);
  event.preventDefault();
  }
  