added migrations for decks
added model Deck
added settings for Decks to model Card, User
added decks_controller.rb, routes, settings to user.rb
replaced code to cards_controller.rb for support Deck
added settings for Deck to index & users controller, view
added routes for Deck
added views for Deck; fixed bugs controller cards, decks; fixed bugs layouts/application.html.erb
added views deck = edit, new; edited index/index.html.erb
added views show deck; fixed more bugs to views
fixed bugs to Card model, Cards index views
fixed bugs to views Cards, Decks; cleared code
cleared code to MVC
fixed bugs to controller Cards, Index; views users/edit.html.erb
added links to User model for Card model
Second try. Cleared code
added name Deck; added strftime
DRY source to Views
very more rewrited spec; added gemset, gem rails_best_practices
added specs to index_page