Metacat

implement getChecksum (retrieves from system metadata)

use shared get() method from superclass

use shared getLogRecords method

Remove isAuthorized(), setAccessPolicy(), and getLogRecords() methods since they're implemented in the superclass.

use Permission, not Event for isAuthorized() methods

do not delete the access rules when we "archive" the document on "delete" (commented out for now)

allow reading from xml_revision table when we are the doc owner

CNCoreImpl is replaced by CNodeService

implement CNAuthorization

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