Create sessions controller
Create integration test for authentication
 Add resources to get the standard RESTful actions for sessions
Create test for signin/signout authentication
Add minimal restful function to controller and template
Create test for invalid sign credentials
mend

Create test using capypbara for invalid sign in credentials
mend

Create test for invalid sign in credentials
Create test using capybara for valid sign in credentials
Create form for sign in
Fix typo in authentication test
Add functionality to sessions controller to validate user
Add flash method in controller for invalid sign in
Refactored flash message in controller to use .now
Refactor form in new sessions view
Reword test for authentication
Add SessionsHelper to application controller
Add remember token to test for authentication
Generate migration for remember token
Generate new migration to fix failing test