Move the sign_up (create new profile) logic to ProfilesController

Conflicts:
	app/controllers/pages_controller.rb
	app/views/layouts/application.html.erb
	app/views/pages/sign_up.html.erb
	app/views/profiles/new.html.erb
	config/routes.rb
Merge pull request #151 from rubymonsters/sign_up_to_profile

Move the sign_up (create new profile) logic to ProfilesController