jQuery: fix for DataTables dependency URL location

* Fixes URL of jQuery UI DataTables dependency.  (closes #2078)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
Merge branch 'maint-1.1'

* maint-1.1:
  jQuery: fix for DataTables dependency URL location
BibFormat: larger column `format.code`

* Increases length of column 'format.code' to enable larger values.
  e.g. `recjson` (closes #2072)

Signed-off-by: Eirini Psallida <eirini.psallida@cern.ch>
Reviewed-by: Jiri Kuncar <jiri.kuncar@cern.ch>
BibIndex: upgrade recipe for `tag.recjson_value`

* Adds upgrade recipe for `tag.recjson_value` that was forgotten in
  commit e0f2ea91754368f639abe86526096a4d947e99a5.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
WebSubmit: doilookup function in webinterface

* Adds doilookup function to websubmit_webinterface that uses the
  crossrefutils and returns a dictionary with MARC codes as keys and
  values from crossref website as values (that can be used in
  submissions to prefill some fields based on the DOI).
  (closes #2025)

Signed-off-by: Sebastian Witowski <sebastian.witowski@cern.ch>
Tested-by: Tibor Simko <tibor.simko@cern.ch>
WebJournal: Indico seminars widget improvement

* Improves the Indico seminars widget but fetching more carefully
  information about the creator/chair of the event as well as the
  URL.  (closes #1980) (closes #1981)

Signed-off-by: Nikolaos Kasioumis <nikolaos.kasioumis@cern.ch>
Tested-by: Tibor Simko <tibor.simko@cern.ch>
WebComment: general comment format improvements

* Introduces the CFG_WEBCOMMENT_ENABLE_HTML_EMAILS config variable.
  When True, emails will also include HTML content.

* Introduces the body_format column for cmtRECORDCOMMENT that describes
  the format of the body of each comment ("HTML", "TEXT", etc.).

* Handles comments appropriately when storing and displaying them,
  according to their body format and desired output format.

(closes #2064)

Co-Authored-By: Nikolaos Kasioumis <nikolaos.kasioumis@cern.ch>
Signed-off-by: Nikolaos Kasioumis <nikolaos.kasioumis@cern.ch>