devise installed
dropped and replaced db which had gotten all crapped up
got devise migration working, phew
devise is working for registration! I am the happiest girl in the world!
Added Devise authentication and got account creation up and working.
Added some more styling to the pages (copied over from the prototype) and added a background image.
Added tests for login and logout and got them to green
Created but didn't really fill in spec for viewing profile
Updated registration
 Fixed /spec/features/record_hike_spec.rb
 It had been broken by previous changes that (correctly) require users to log in before recording a hike.
 Now user has to log in before recording a hike and the test reflects that.
Added devise authentication stuff.
-Login via devise
-Logout
-Registration
-Hikes can only be created by logged-in users