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git-svn-id: http://svn.code.sf.net/p/shopizer/code/shopizer-portlet@2311 e80ee2c7-76f3-4005-aeaf-98396743f455
Added method to change underlying collections

git-svn-id: http://svn.code.sf.net/p/shopizer/code/shopizer-portlet@2312 e80ee2c7-76f3-4005-aeaf-98396743f455