Fix error when viewing digital object read only template when there is a linked instance
Distinguish between the record's instance property and the calculated 'published instances' when rendering in the public app - so counts in the nav match those rendered in the template
Order job records by their create time in descending - so the main record displays first in the list
When creating a relationship involving suppressed records, suppress the relationship immediately.
Drop any instances whose 'ref' was suppressed.
Add selenium test for suppressing a digital object to catch error on the read only template
Public _navlist doesn't use the :count param
Merge pull request #752 from hudmol/fix-do-suppression

[Delivers #66596734] Fix digital object suppression