adapted service metadata schema to support external metadata authorities/ids
support writing of metadata urls from dataset metadata provided in service metadata config
added jaxb parsing of new service/data metadata config extensions
added exporting of authority urls/identifiers in WMS 1.3.0 capabilities
allow more heuristic extraction of dataset metadata with unqualified qnames, fixed exporting of authority urls/metadata urls in wms
fixed null pointer when no metadata is configured
Merge pull request #44 from occamlabs/wms-authority-url-support

WMS authority url support