Start work on straightimpl.Access* classes. Also, improve immutability of DataFormatType.
Update pom.xml for work on Access* classes.
Update pom.xml for work on Catalog* classes.
Start work on straightimpl.CatalogImpl and .CatalogBuilderImpl.
More work on straightimpl.CatalogImpl and .CatalogBuilderImpl.
Finish work (for now) on Catalog and CatalogBuilder in straightimpl package.
Use interfaces rather than impl classes where can.
Start work on straightimpl ThreddsMetadata (and Builder). Also, clean up more URI usage (String in Builder, URI in Catalog object)
More work on straightimpl ThreddsMetadataBuilder. Also, add DatasetBuilderImpl.
More work on straightimpl ThreddsMetadataBuilder.
More work on straightimpl ThreddsMetadata* classes.
More work on ucar.thredds.catalog.straightimpl ThreddsMetadata