A perfectionists improvements.
* ErrorRegulator now loaded by controller (rather than by application). This allows for control over which pages implement error displays and thus fixed some console warnings.
* When landing on the login page while already being logged in on the server, users are redirected to the app.
* When landing on the app page without being logged in, the client does not attempt to load entries and tags and therefore does not display 401 error messages.
* Slightly improved the models SyncError message generation.