Updated react-router-redux related code.

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There were some changes in react-router-redux package. Updated the code with latest changes on using store and history:

const store = createStore(
  combineReducers({
    ...reducers,
    routing: routerReducer
  })
)

// Create an enhanced history that syncs navigation events with the store
const history = syncHistoryWithStore(browserHistory, store)

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Tests not ran.