Generate Sessions skeleton and test examples.
Implement basic session functionality.
Add test examples for sign in functionality.
Implement sign in page and partial controller code.
Add test example for improper flash messages.
Fix flash message displaying for too many pages.
Finish implementing create session controller.
Implement remember token in user model.
Add sign in helper method.
Add ability to retrieve current user based on cookies.
Add dropdown navigation for signed in users.
Add automatic sign in after sign up.
Implement sign out functionality.
Merge branch 'sign-in-out'