[castor-user] Remove xmlns:xsi from collection

[pablo fernandez]

Hi,

I'm serializing a collection of objects and I get this attribute in each of
them:

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="activityDetails"

I thought it was harmless but I'm getting some strange bugs from a 3rd party
lib and I wanted to know if there's a way of suppressing both attributes.

Thanks a lot

-- 
Fernandez, Pablo.