link - Route links starting with http through regular links

We still might want to add support for special cases like // etc. later.
This will do for now.

Closes #251.

Author: bebraw

components/link/link.jsx

@@ -1,12 +1,13 @@
 import React from 'react';
+import startsWith from 'lodash/startsWith';
 
 let RRouter;
 if (__DEV__) {
   RRouter = require('react-router');
 }
 
 const Link = ({ to, ...props }) => {
-  if (__DEV__) {
+  if (__DEV__ && !startsWith(to, 'http')) {
     return <RRouter.Link to={to} {...props} />;
   }