All restaurant related files ready for mvp v1.
updated gemfile with bcrypt
Controller structure added, app.rb removed
Authenticated and not authenticated intro pages added
helper structure added
sessions file added
Users view file added
Config.ru file updated to accomodate the removal of app.rb and addition of controller files.
user model file built and added
rakefile added, not used
updated restaurantsql file to accomodate authentication.