* Update Satellizer to version 0.6.0 so that it can use new
        $auth.isAuthenticated() method
* add ngDialog to core
* add IdentityService
* add ngDialog to LoginCtrl and LogoutCtrl in order to close any open
        dialogs
* add run method to app.core module to getCurrentUser whenever the app
        is reloaded
* create lvAuthWidget directive for presenting navbar area with login,
        logout, account, etc.
* add User service
* add AuthCtrl
* add custom ng_dialog scss from previous project
* server-side add jwt, authService, and User model to user index to
        enable handling new '/api/users/me' route (used to load current
        user)