Packaging for 3.0.1 release

Turns out version 3.0.0 was released without being tagged and without the
CHANGELOG being updated.

CHANGELOG

@@ -1,8 +1,11 @@
+== Version 3.0.1
+
+* Fix saving nested resources in ActiveResource 3.1+
+
 == Version 3.0.0
 
 * Added support for OAuth Authentication
 * Removal of support for Legacy Authentication
-* Fix saving nested resources in ActiveResource 3.1+
 * Added Cart resource
 
 == Version 2.3.0

lib/shopify_api/version.rb

@@ -1,3 +1,3 @@
 module ShopifyAPI
-  VERSION = "3.0.0"
+  VERSION = "3.0.1"
 end