use optional template for registering DOIs at a given target. https://projects.ecoinformatics.org/ecoinfo/issues/6092
use maven to manage most jar dependencies in Metacat.Exceptions include: LSID, Datamamager (EML),
include size and format datcite elements (optional) and use more general resourceType without formatId in them (Dataset/metadata and Dataset/data). http://schema.datacite.org/meta/kernel-2.2/doc/DataCite-MetadataKernel_v2.2.pdf
lookup the title for EML files when registering DOIs.lookup the creator from DataONE CN (if available).add EML-based test. http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5513
refactor DOI registration into separate class. http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5513