Packaging for 3.0.0 release

CHANGELOG

@@ -1,3 +1,10 @@
+== 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
 
 * Fix double root bug with ActiveSupport 3.2.0