Add ng service for adding products
Add Unit test for adding products
Modify AddProduct Unit test to use mock product
Add Edit button to products.html
Modify products.html and ng controller for editing products
Add update product service to ng services.js
Add saveEdit function to ng controller for editing products
Add delete button in products.html
Add remove product function and controller in ng controller
Add ng click attribute to delete product tag in products.html
Add deleteProduct.html
Add remove product function to Product service
Modify RemoveProductCtrl for deleting products and closing modal
Modify ngclick of Delete button in deleteProduct.html
Modify ngclick of Delete button in deleteProduct.html
Modify controller to fix minor bugs
Add ediProduct function to ProductsCtrl