Rudder

In the same idea that we are able to export configuration rules to XML files, we want to be able to export the user library.

The specification are given here: http://www.rudder-project.org/foswiki/Development/Pi_cr_group_export_import

The main tasks in that user story are:

• create a marshaller (serialiser to XML) for User Policy Template files (we don't have that one yet);
• create a service to dump the user library into file, correctly calling marshaller on objects;
• delete files in the target directory
• dump file in the target directory
• commit