Add static pages

	modified:   Gemfile
	modified:   Gemfile.lock
	new file:   app/assets/javascripts/static_pages.js.coffee
	new file:   app/assets/stylesheets/custom.css.scss
	new file:   app/assets/stylesheets/static_pages.css.scss
	new file:   app/controllers/static_pages_controller.rb
	new file:   app/helpers/static_pages_helper.rb
	new file:   app/views/layouts/_footer.html.erb
	new file:   app/views/layouts/_header.html.erb
	new file:   app/views/layouts/_shim.html.erb
	modified:   app/views/layouts/application.html.erb
	new file:   app/views/static_pages/course.html.erb
	new file:   app/views/static_pages/home.html.erb
	modified:   config/routes.rb
	modified:   Gemfile
remove