add shoulda
add factorygirl
add basic model spec for user
add user factory
add capybara DSL and focus to spec_helper
add request spec for users
add resources route (albeit limited) for users
move into partial and use image_tag for rss logo to fix bug
move images into partial
Update header text for signed in user
move methods into a sessions helper
add signout method, and current_user? method. Add signout to sessions controller.
add a gravatar helper
add flash message display
add user profile page
add styles to support flash messages and buttons
add pry to gems and remove users spec

Users spec failing as a result of user not being logged in when
visiting user page. Will sort this out as a separate pull request.
cosmetic only: move user profile images out of user-profile div

user-profile div constrained in size and didn't allow three columns of
gifs.
Update users_controller.rb
Update routes.rb