Create a header for the site
Add ng-min to the project
Link with the header to root
Configure Angular's $http
Load the Angular setup before other app JS
Create and utilize an Angular bootstrapper concern
Do not yield Rails views in application layout
Create Angular routes
Fix authentication in SessionsController
Create sign-in form
Implement authentication in Angular
Validate sign-in form with Angular
Add flash message library for Angular
Display messages after authentication attempts