Packaging for release v.5.2.2

CHANGELOG

@@ -1,3 +1,7 @@
+== Version 5.2.2
+
+* Add delivery confirmation endpoint to Ping resources.
+
 == Version 5.2.1
 
 * Log warning when Shopify indicates deprecated API call was performed

lib/shopify_api/version.rb

@@ -1,3 +1,3 @@
 module ShopifyAPI
-  VERSION = "5.2.1"
+  VERSION = "5.2.2"
 end