[ogsa-bes-wg] v23 of BES draft

Hi; My apologies for getting this draft out so late -- it's been another week of "agenda bending interruptions". In any case, enclosed is a revised version of the BES draft that includes a full exposition of the extensible state model concept as well as a refactoring of the two port-types so that attribute information and its retrieval are now part of the BES-Factory port-type. This was in response to the decision that there should be a "sys admin" port-type and an "ordinary users" port-type and that obtaining information about the state of a BES and its activities is something that ordinary users do and not just sys admins. Marvin.