Metacat

Metacat does not implement CNIdentity - it is a stand-alone service

implement registerSystemMetadata

implement object format methods - using a separate class to do the actual metacat lookup/caching so that teh CN implementation looks cleaner

implement getLogRecords

include latest D1 common/lib changes

Initial check in of the MNodeService stub methods that implement the D1 MN* interfaces. CrudService methods will be transitioned into this class. The methods follow the D1 0.6.2 API thus far.

Also changed CNodeService to reflect minor changes to the D1NodeService class.

Add a static getInstance() method to CNodeService and make CNodeService a singleton.

Initial check in of the CNodeService stub methods that implement the D1 CN* interfaces. CNCoreImpl methods will be transitioned into this class. The methods follow the D1 0.6.2 API thus far.

CNAuthorization.isAuthorized() and MNAuthorization.isAuthorized() differ. Removed it from the base class.

getChecksum() is intentionally different on the CN vs MN, so I'm removing it as a common method.