Allow symbols to be actionTypes. So you can have export const MY_ACTION = Symbol()

Author: boopathi

src/createDispatcher.js

@@ -63,7 +63,7 @@ export default function createDispatcher() {
   // Reassign the current state on each dispatch
   function dispatch(action) {
     invariant(
-      typeof action.type === 'string',
+      typeof action.type === 'string' || typeof action.type === 'symbol',
       'Action type must be a string.'
     );