Change the underscore each to jquery's
Refactor the loop of Array.getElementByKey
Refactor the loop of ShoppingCart.updateCart
Fix the bug of item count in index.html
Change ShopingCart.updateCart to private
Refactor loop in ShopingCart.updateCart with lodash
Merge branch 'SanCoder' into angular-SanCoder

Conflicts:
	scripts/main.js