separate AddressBook from ShoppingCart Controller
+clear shopping cart action
Product:
-sku
+sn no.
+upc
-weight
-url
+tags to Product
+dropdown menu in backend

+Spec models
+Spec CRUD

Product Controller:
printCreateForm / printEditForm combine into form action
form +spec

resort the js order in main.php file
+Product SEO
fix:
Product save - SEO
date picker won't show on edit form

change fields order in product form
Product Image
+ order
+ cover
upload 1st image will automatic setting "main image"