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>