3.3.0

• StatusBar._defaultProps if not defined fallback to default and black #113 Thanks @raarts
• Added render props to further customize components. Example usage:

//...
import Icon from 'react-native-vector-icons/FontAwesome';
//....
  renderImage(props) {
    // DropdownAlert props are passed down
    return (
       <Icon name="rocket" size={30} color="#900" />
    );
  }
//...
render() {
  <DropdownAlert
      ref={ref => this.dropdown = ref}
      renderImage={(props) => this.renderImage(props)}
   />
 }
//....