[geotk] ISO 19115-2 support

[Martin Desruisseaux]

Hello David

David Neufeld a écrit :
> SpatialMetadataFormat stream = SpatialMetadataFormat.STREAM;
> SpatialMetadata spatialMeta = new SpatialMetadata(stream);    
> Instrument instrument = spatialMeta.getInstanceForType(Instrument.class);
> defInstrument = new DefaultInstrument(instrument); 
> //IllegalArgumentException: No such element: Citations

It should be fixed now, both on the Mercurial repository or from the Maven 
snapshots repository, at your convenience.

	Best regards,

		Martin