add debug params
add user resource to config
add view for user profile
add show to users controller
add user profile tests
add factory girl
add factory to create user
add title and test for profile
redefine bcrypt cost factor in test env
add gravatar and helper
format gravatar
add signup form tests
add form and style
add strong user params
add errors partial
add error css
fix typo in spec, able to sign up users
add flash success
add SSL to production