message: Added truncate crumb trail definitely typed test
diff: -import { HashHistoryManager, StateNavigator, State } from 'navigation';
  +import { Crumb, HashHistoryManager, StateNavigator, State } from 'navigation';
  // History Manager
  class LogHistoryManager extends HashHistoryManager {
  @@ -41,6 +41,7 @@ person.urlDecode = function urlDecode(state: State, key: string, val: string, qu
  return queryString ? val.replace(/\+/g, ' ') : decodeURIComponent(val);
  };
  person.validate = (data: any) => data.id > 0;
  +person.truncateCrumbTrail = (state: State, crumbs: Crumb[], data: any) => crumbs;
  // Navigation Event
  var navigationListener = (oldState: State, state: State, data: any, asyncData: any) => {
  