Add XSL variable for easy access to request.
Fix findbug issue.
Rewrite rules / metadata/{{uuid}} redirect to old srv/eng/home service (#551).

Add rule for accessing metadata in HTML in multinode configuration also.
eg. http://localhost:8080/geonetwork/node1/metadata/da165110-88fd-11da-a88f-000d939bc5d8
MEF Import does not set privileges when info.xml is defined (#552).
Merge remote-tracking branch 'upstream/stable-develop' into develop