* Reload the page if the buildIds are mismatch.
* Reload the browser with main.js and commons.js buildId mismatch.
* Implement proper reloading with an API to persist the state.
* Add some tests for force reload.
* Change _reload to _forceReload.
* Add a section about reload hooks to the README.
* Allow to add a hook to handle BUILD_ID mismatch.
* Remove readme docs.
* Do not show a custom error to the user.
* Cancel the routing when there's a BUILD_ID mismatch.
* Fix a typo.
* Passing route to SingletonRouter.onBuildIdMismatch
* Handle buildId mismatch automatically.
