BibEdit: update templates
BibTasklets: add arXiv DOI update script

* New BibTasklet added for adding DOI's to records via arXiv IDs
  from specific XML files provided by APS.

* The tasklet adds fields 024 DOI, 773 pubnote, 260 publication
  date and 980 Published to records mapped if missing.

* This script is adapted from off-the-record script authored by
  Sebastian Witowski <sebastian.witowski@cern.ch>

Tested-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
BibTasklets: arXiv DOI script update

* The script now adds 260__c with the publication date if it is
  missing in the original record.
BibTasklet: arXiv DOI tasklet index update

* The tasklet to ingest DOI and journal information will now
  launch BibIndex jobs for the right indexes. Before reportnumber
  was used, while it should be year, global and journal.
HepData: various front-end fixes

* Modifies the brief format to show Hepdata links.
* Modifies the BibTeX exporter to show Handles correctly.
  (complements hepdata-newformats-2 on top of invenio)
* Adds format elements for Dataverse datasets.
HepData: fixes link on HTML brief format
BibRank: adds Data to citeable colls
BibEdit: add data template
BibEdit: correct 542 field in templates
BibConvert: add special arXiv checks

* In the arXiv harvesting the XSLT stylesheet nows filter out
  certain records in general categories (astro-ph, physics) and
  only let's through records in astro-ph.HE, physics.acc-ph and
  physics.ins-det.
BibConvert: fix to arXiv conversion
BibConvert: yet more arXiv XSLT fixes

* Reworks the way records are filtered in the XSLT of arXiv.
BibConvert: add arXiv XSLT with no filters
installation: add missing XSLT to install
BibConvert: 690C_ field no longer generated

* 690C_ fields are no longer generated for arXiv harvests.

Reviewed-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
BibConvert: final filtering fixes

* The arXiv XSLT filtering now properly uses "if" instead of
  "when" to allow all of the filtering rules to be examined
  per record.