message: Assigned route to avoid clashes
  If no route assigned then it will be '' which conflicts with {tab?}, So assigned it a route to avoid clash even though this state isn't used on web
diff: @@ -12,7 +12,7 @@ import {getHome, getFollows, getTweet, getTimeline} from './data';
  export default () => {
  const stateNavigator = new StateNavigator([
  {key: 'home', route: '{tab?}', defaults: {tab: 'home'}},
  - {key: 'notifications'},
  + {key: 'notifications', route: 'x/y'},
  {key: 'tweet', route: 'tweet/{id}', trackCrumbTrail: true, defaultTypes: {id: 'number'}},
  {key: 'timeline', route: 'timeline/{id}', trackCrumbTrail: true, defaultTypes: {id: 'number'}}
  ], new NativeHistoryManager(url => {
  