add partials for error and form
update routes
create and test add product in product path
test error message on create new product
add validation for unique product names and test
DRY product spec
remove extraneous folders
create show page
create edit page, update method and test
create product index page
create and test both destroy method and all products button
pass user password validation to FactoryGirl.create(:user)
update index page
update test for add_product to users_path
create sessions controller and login page
create user login and test
create test for user logout
create authorized user methods