DS-1928 use the oai-identifier schema in <description>
[DS-1958] Discovery OutOfMemoryError when indexing Large Bitstreams
Merge pull request #493 from helix84/DS-1928-OAI-identify

DS-1928 use the oai-identifier schema in <description>
Merge pull request #572 from KevinVdV/DS-1958

[DS-1958] Discovery OutOfMemoryError when indexing Large Bitstreams
[DS-1718] Add config parameter webui.submit.upload.ajax to dspace.cfg?

Just document it in dspace.cfg, with commented example.