Add hbz01 transformation, start for #149

* Add mab xml handler
* Add test
* Add morph, add property lobid#hbzID
Rename subject rdf marker to be more self-explanatory
Merge pull request #218 from dr0i/rename-rdf-subject

Rename subject rdf marker to be more self-explanatory
Fix ignoring some geo location data

* Fix xml record structure and underlying test
Use local assignment first and modify field variable when necessary
Merge pull request #219 from dr0i/organisation-fixes

Fix ignoring some geo location data
Merge pull request #201 from dr0i/hbz01-resources-to-lobid

Add hbz01 transformation, start for #149
Merge pull request #220 from fsteeg/issue-217-rdfxml

Use jsonld-java 0.3-SNAPSHOT to support RDF-XML output
Use external contexts when serving JSON-LD results

See #72, #182, #183, and #207