updating stubs to have fluent setters and retaining deprecated methods

lib/PayPal/Api/ItemList.php

@@ -10,8 +10,9 @@ class ItemList extends \PPModel {
 	 */
 	public function setItems($items) {
 		$this->items = $items;
-	}	
-	
+		return $this;
+	}
+
 	/**
 	 * List of items.
 	 * @return PayPal\Api\Item
@@ -19,15 +20,17 @@ class ItemList extends \PPModel {
 	public function getItems() {
 		return $this->items;
 	}
-	
+
+
 	/**
 	 * Shipping address.
 	 * @param PayPal\Api\ShippingAddress $shipping_address
 	 */
 	public function setShippingAddress($shipping_address) {
 		$this->shipping_address = $shipping_address;
-	}	
-	
+		return $this;
+	}
+
 	/**
 	 * Shipping address.
 	 * @return PayPal\Api\ShippingAddress
@@ -35,5 +38,19 @@ class ItemList extends \PPModel {
 	public function getShippingAddress() {
 		return $this->shipping_address;
 	}
-	
+
+	/**
+	 * Deprecated method
+	 */
+	public function setShipping_address($shipping_address) {
+		$this->shipping_address = $shipping_address;
+		return $this;
+	}
+	/**
+	 * Deprecated method
+	 */
+	public function getShipping_address() {
+		return $this->shipping_address;
+	}
+
 }