CMS: primary dataset metadata update

* Updates CMS Primary Datasets records metadata.
  (addresses #89 #333 #154 #91 #223) (PR #362)
records: new record data model fields

* Adds new record fields to the data model and amends some existing ones
  to reflect changes in CMS Primary Datasets.  (see PR #362)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
templates: reflect new CMS Primary Datasets fields

* Amends CMS Primary Datasets templates in order to adapt to new and
  amended metadata fields.  (see PR #362)

* NOTE Does basic amendments only so that there would be no traceback;
  the templates need further amendments to display proper information.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
CMS: update `cms-tools-ispy.xml`

* Updates `cms-tools-ispy.xml`.  (addresses #223) (PR #369)
CMS: update `cms-eventdisplay-files.xml`

* Updates `cms-eventdisplay-files.xml`.
  (addresses #311 #154 #333 #223) (PR #366)
CMS: update `cms-eventdisplay-files.xml`

* Updates `cms-eventdisplay-files.xml`.
  (addresses #357) (PR #366)
CMS: update `cms-derived-pattuples-ana.xml`

* Updates `cms-derived-pattuples-ana.xml`.
  (addresses #223 #91 #154 #145 #89) (PR #366)
templates: reflect new CMS Derived Datasets fields

* Amends CMS Derived Primary Datasets templates in order to adapt to new
  and amended metadata fields.  (see PR #366)

* NOTE Does basic amendments only so that there would be no traceback;
  the templates need further amendments to display proper information.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
UI: fixes displaying for <ol> in Firefox

* (closes #375)
news: updates news page

* removes link from “author”
* removes ratings ( “+7” pill )
* (closes #284)
footer: harmonise page footer across site

* removes reproduction of top-nav-menu in footer
* makes footer in homepage and other pages look identical
* adds transparent background in testimonials
* (closes #360)
UI: updates testimonials responsiveness

* hides “testimonials” area when window/screen height is small
UI: fixes overflow in collection boxes
research: adds research specific description

* adds specific experiment description in “Research Pages”
* (addresses #361)
UI: breadcrumbs generalization

* use of “>” (#addresses 316)