created sessions controller with new, create, destroy routes to log users in and out (pending testing of user authentication)
remove unnecessary comments
added link_to paths for signup/login to anonymous user menu
added gems for better errors and rails console:
compress validations for uniqueness to one line; added requirement for presence of password for has_secure_password
ability to logout added to standin anon menu partial
sessions controller with functional signing in and out
Merge pull request #11 from feministy/users_create_questions

User signup, login, and logout
fixed problem with signup - bad variable naming
blank users#index view to prevent error throwing
ran updated migration for users table
Merge pull request #12 from feministy/signup_bug_fix

Signup bug fix
show individual questions and access individual questions from questions#index
questions#index now accessible from menu; menu includes links to all user profiles
users#index created with links to individual profiles
Merge pull request #14 from feministy/anonymous_questions_views

Anonymous questions views
Merge branch 'master' of https://github.com/feministy/stack_overflow into rspec