Add has_secure_password to students
Show the currently signed in student
Allow students to sign in
Add spec around signing in with an invalid password
Allow students to sign out
Add signup and sign in links for signed out users
Update copy to reflect sign-in and edit profile
Use password fields for passwords
Fix bootstrap flash class
Use named routes for signout and profile
Update templates with links to edit profile page
Update copy
Make Bueller link to the homepage
Add _spec to feature file
Fix editing profile spec

Apparently you must use "feature" if you are going to use "scenario".
Fix no method error in editing profile spec
Use snake_case for sign_in

"Sign in" is two words.
Merge branch 'assignment-3'
Snake_case sign_out
Remove unnecessary `as` options in routes

The `as` option is only needed if you are using a name that is different
than the name of the URL.