global: removal of `invenio_demosite` tests

* Removes left-over tests after `invenio_demosite`. (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
global: removal of SQL file and library receivers

* Removes further left-overs after `invenio-demosite`. (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
global: replacement of demosite by opendata

* Replaces "demosite" by "opendata".  (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
global: copyright message update

* Replaces "Invenio" by "CERN Open Data Portal" in copyright statements.
  (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
global: PEP-8 in copyright statements

* Uses one leading comment sign in copyright statements for better PEP-8
  compliance. (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
setup: cleanup of requirements

* Removes old packages from `requirements.txt'.  (addresses #64)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
templates: link update on CMS Physics Objects page

* Fixes broken links on the CMS Physics Objects page.
  (closes #709) (PR #710)
templates: CMS links to Issues and Limitations

* Fixes links to Issues and Limitations. (closes #711) (PR #712)
ispy: author/contact changes in about dialog

* Amends questions/comments/authors information in the About dialog of
  the event display interface.  Mirrors similar changes done in
  `invenio-previewer-ispy`.  (PR #705)
ALICE: update of `alice-analysis-modules.xml`

* Fixes HTML/XML formatting in the description field.
  (addresses #405) (PR #708)
templates: safe display of markup in `abstract`

* Considers `abstract` as `safe` for showing HTML content it
  contains.  (closes #405) (see PR #708)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
records: updates "big-file" section for AliESD

* (closes #688)
records: adds average download time in popups

* (addresses #685)
records: updates output text for average_download

* (closes #685)
records: updates "Citation" field

* (closes #693)
records: updates "big"-files displaying

* adds AJAX functionality to “big”-file-box, to asynchronously paginate
* adds functionality to dynamically choose words for caution box
* (closes #684)
CMS: PAT file removal in primary datasets

* Removes PAT file entries (field 8567) that slipped in Electron and Mu
  AOD primary dataset records via common EOS root directory.  (see #377)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
Co-authored-by: Pamfilos Fokianos <pamfilos.fokianos@cern.ch>
CMS: addition of IFCA CMS external resource record

* (closes #714)
tools: bundles to generate correct d3 version
UI: removes dependence on fonts.googleapis.com

* updates to serve fonts ourselves
* (closes #707)