HCSVLAB-553: rework the "do_not_display" stuff so that we see more clearly what will be displayed to end users and what is only shown in the dev environment. Done by having a new section "Development Extras" for the dev-only stuff and having the "Item Details" section the same for all environments. Updated the auto-test to check that the "Development Extras" section does not appear in the test environment.
Merge branch 'master' of github.com:IntersectAustralia/hcsvlab