finished getLogRecords. Fixed some date bugs in metacat.
adding getlogrecords to the rest interface.
changed getLogRecords to use new classes for log events
fixed bug in metacat that allowed attribute data to be appended to element data in returnfields
fixed bugs associated with crud access control changes.
added EventLog statements to all public methods in CrudService in preparation for addin the getLogRecords() method
added better debugging error messages for CN dev errors
added generateMissingSystemMetadata to the ResourceHandler so it is now available via a REST call.
made the test functional so that it checks that missing system metadata will be created.
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