first pass at integrating CILogon/MyProxy certificates in Metacat. Configuration is specific to mn-demo-4.test.dataone.org for the time being (this will cause localhost deployments to fail webapp deployment). https://projects.ecoinformatics.org/ecoinfo/issues/5936
exclude jibx-tools, maven cruft and org.eclipse "dependencies" to cut down on the number of jar files in the lib folder.
move to libclient/common snapshot to match metacat-common project.
force the use of newer xercesImpl 2.7.1
Add the dependency to the metacat-common.
use maven to manage most jar dependencies in Metacat.Exceptions include: LSID, Datamamager (EML),