Metacat

merge from 2.6 branch: use AuthUtils to get group and equivalent identities rather than manually try to extract groups from subject info (can include incorrect groups for given primary subject). https://github.nceas.ucsb.edu/KNB/arctic-data/issues/163

merge from 2.6 branch: use group subject (not name) when translating Session.subjectInfo into group list for Metacat's DocumentImpl. https://github.nceas.ucsb.edu/KNB/arctic-data/issues/163

Add more information on the error message if the client's certificate is not trusted.

Merge the changes from the 2.6 branch into the trunk, fixing filename construction.

refs https://github.nceas.ucsb.edu/KNB/arctic-data/issues/151

merge from 2.6 branch: add support for EML 2.1.1 in OAI-PMH provider. https://projects.ecoinformatics.org/ecoinfo/issues/7009

Fixed a bug to use an identifier object to get a value in a vector.

Check the chain end if obsoleted by another object.
See ticket https://redmine.dataone.org/issues/7624

Use sql command to get some information rather than hazelcast.

Use a hashmap to replace a sql query to improve performance in the getHeadPID method.

In the getHeadPID method, we got the field obsoletedBy from the systemmetadata table rather than the hazelcast service.