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1.5 - Migration to org.rometools (light break compat)
1.6 - Elimination of SydSydn* interfaces and Synd*Impl in favor of base objects (break compat)
1.7 - Introduction of "Rome" class with pass-by-ref context for modules
1.8 - Addition of a factory by package for the Rome class.
1.9 JSR-330 330 remix of the Rome class and all deps.