feat(*): react v15 - Functional components can now return null too

Returning null on functional components instead of <noscript/>

https://facebook.github.io/react/blog/2016/04/07/react-v15.html#functional-components-can-now-return-null-too

Author: topheman

src/components/common/DisplayStars.js

@@ -8,7 +8,7 @@ const DisplayStars = ({number}) => {
       </span>
     );
   }
-  return <noscript/>;
+  return null;
 };
 
 DisplayStars.propTypes = {

src/components/common/__tests__/DisplayStars.spec.js

@@ -13,7 +13,7 @@ describe('components/common/DisplayStars', () => {
     });
     it('should render nothing if props.number = 0', () => {
       const wrapper = shallow(<DisplayStars number={0} />);
-      expect(wrapper.equals(<noscript/>)).to.be.true;
+      expect(wrapper.equals(null)).to.be.true;
     });
   });
 });