some cucumber implementation
no more shipping date in validation, it will be set when the order is being created
Merge branch 'modify_val_order' into develop

* modify_val_order:
  no more shipping date in validation, it will be set when the order is being created

Conflicts:
	app/controllers/orders_controller.rb
	app/models/order.rb
CU203 Order Validation integration tests added
Merge branch 'validate_order_int_test' into develop

* validate_order_int_test:
  CU203 Order Validation integration tests added
  some cucumber implementation

Conflicts:
	app/views/layouts/_navigation_links.html.haml
	app/views/orders/accept_form.html.haml
	app/views/orders/index.html.haml