 * add DigitalObject.uri  * add DigitalObject.has_model  * add ObjectTypeDescriptor for handy type wrapper access based on cmodel
 * add DigitalObject.uri
 * add DigitalObject.has_model
 * add ObjectTypeDescriptor for handy type wrapper access based on cmodel


git-svn-id: bb2ed31f08aebe2c251d311350391bbcccfc1c3a@7 1168706f-7e1d-44e7-b746-9e172b5a9a2f

emory-libraries/eulcore-history,emory-libraries/eulcore-history