oaiharvester: refextract task fix

* Checks properly if the PDF is downloaded successfully inside the
  refextract task.

Reviewed-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
template: fix for unicode url handling

Signed-off-by: Esteban J. G. Gabancho <esteban.gabancho@gmail.com>
formatter: addition of format.mime_type column

* Adds upgrade for the `Format` table by adding `mime_type`.

Signed-off-by: Konstantinos Kostis <konstantinos.kostis@cern.ch>
previewer: d3js csv previewer

* Adds d3js csv previewer.

Signed-off-by: Adrian Pawel Baran <adrian.pawel.baran@cern.ch>
Reviewed-by: Jiri Kuncar <jiri.kuncar@cern.ch>
oauthclient: save orcid in extra data

* Saves the orcid of the user in the extra data column of
  remoteACCOUNT.

Signed-off-by: Javier Martin Montull <javier.martin.montull@cern.ch>
oauthclient: missing attribute addition

* Adds missing attribute to `OAuthRejectedRequestError` constructor.
  (closes #2483)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
workflows: template fixes

* Adds template hp_detail_base.html.

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>