Generate Sessions controller and files
Add sessions resource and signin/signout routes
Add signin page
Write tests for signing in to application
Create form for signing in
Fix missing comma in signin form
Write test to check for flash.now hash
Include SessionHelper to make module available across controllers
Write basic test for remember_token in user object
Write test to check for valid remember_token when user is created
Add remember_token to users table
Add callback and additional methods to generate remember_token on creation
Add sign_in method
Add methods for setting and retrieving the current user
Fix SessionsHelper include name
Add helper methods for signing in and checking the signed in user
Add conditional links -- based on whether user is signed_in?
Add functionality for signing in using SessionsHelper
Require bootstrap javascript for use in menu dropdowns
Add sign_in after user creation