added edit user page test
add edit view to user
update authenication_pages test for settings
add sign_in method to utilities in spec tests
edit error to get test to pass
udate test to ensure update works
addded test for non-signed-in users
update user_controller with before filter
updated edit test
update authentication test for same user update
update users_controller with new before filter correct_user
update sessions_helper with current_user?
added test for protected page access
updated sessions_helper with redirect_back_to and store_location methods
update sessions_controller with redirect_back_to_user
completed redirect page
added test for site index
add test for index page content
add index page to views
add test for index link