Move some INFO statements to DEBUG in the MetaDataSvc and fix some ref

...henaPoolMultiTest/share/AthenaPoolMultiTestEventSplit.ref

Control/AthenaServices/src/MetaDataSvc.cxx

...naPoolExampleAlgorithms/share/AthenaPoolExample_ACond.ref

...naPoolExampleAlgorithms/share/AthenaPoolExample_AMeta.ref

...aPoolExampleAlgorithms/share/AthenaPoolExample_Filter.ref

...naPoolExampleAlgorithms/share/AthenaPoolExample_RCond.ref

...PoolExampleAlgorithms/share/AthenaPoolExample_RFilter.ref

...enaPoolExampleAlgorithms/share/AthenaPoolExample_RWBs.ref

...naPoolExampleAlgorithms/share/AthenaPoolExample_RWcBs.ref

...aPoolExampleAlgorithms/share/AthenaPoolExample_ReadBs.ref

...naPoolExampleAlgorithms/share/AthenaPoolExample_WCond.ref

...naPoolExampleAlgorithms/share/AthenaPoolExample_WMeta.ref