BibConvert: remove 'group' check in XSLT

* Sometimes the word "group" get's mixed up with the lastname
  Group. This causes unwanted side-effects.
WebSearch: fix 'jump to record' problem
BibTasklet: small update in recid sync
installation: add format dumps
WebAccess: new searchuser.py

* Add new functionality to allow catalogers to
  search for users.
BibHarvest: remove 500 *temporary entry* on updates

* In the arXiv harvesting, remove any 500 field containing
  temporary|brief entry.

Signed-off by: Jan Aage Lavik <jan.age.lavik@cern.ch>
BibFormat: fix conference format element

Co-authored-by: Thorsten Schwander <thorsten.schwander@gmail.com>