BibFormat: template context function module fix

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
BibFormat: converted detailed record templates

* Adds automatically converted detailed record templates tlp from bft
  templates using manage command `bibformat bft2tpl`.

Signed-off-by: Krzysztof Lis <krzysztof.lis@cern.ch>
Co-authored-by: Jiri Kuncar <jiri.kuncar@cern.ch>
BibEdit: Bibrec model methods addition

* Adds new methods `deleted` and `merged_recid` to `Bibrec` model.

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
installation: Tokeninput download from GitHub

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
WebTag: initial release

* Supports private tags for logged-on users (a) attaching and detaching
  tags to records, (b) tag management in `/yourtags`.

* Adds tag list and tag-editor to brief record view for logged users.

* NOTE: Disable caching of 'HB' templates to see tags in search results.

Signed-off-by: Krzysztof Lis <krzysztof.lis@cern.ch>
Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>