+/**\r
+ * Retrieves target categories available to the current Service Proxy user.\r
+ * <p>\r
+ * Target categories can be used to limit a search to resources tagged with the given \r
+ * category. The following request in a Faces page would obtain categories for displaying, say, a select list:\r
+ * <p>\r
+ * pzreq.sp.categories.run().targetCategories \r
+ * <p>\r
+ * This would get the Service Proxy extension commands, pick the categories command, execute it, and retrieve\r
+ * a list of TargetCategory objects from the returned response data object. \r
+ * </p>\r
+ * @author Niels Erik\r
+ *\r
+ */\r