geoext/geoext2 — pull request #109 by bartvde (2012-05-11 10:43:27+00:00)
Title: Add ProtocolProxy

The one question I have left is whether or not it still makes sense being able to pass in the arg option, since Ext does not have this option anymore in version 4. I am using the arg property on Ext.data.Operation but it feels like a hack.