made changes to application.html.erb
add h2 tag and links to home page
essage
added bootstrap
add partials to layouts/application
add footer
rm old header and shim files
modified config/routes and static_pages_spec
add full_path helper
add named routes to views/layouts/application
refactor spec/requests/static_pages_spec.rb
add Users controller, User_pages_spec, signup_path route