Sgf88-257-258-263

Implements SGF-88 - Region Shortcuts; Implements SGF-257 - Strict types in the SDG XSD for Region data-policy and shortcut attributes; Fixes SGF-258 - missing data-policy attribute for Partitioned Regions; Fixes SGF-263 - ineffective application of disk-synchronous attribute setting on Region bean definitions defined with SDG XML namespace.