Fixed 2 issues. One where problems weren't loading if there was only 1 problem, and another where everything broke if there were 0 problems defined in the caaml
Fixed an issue where confidence wouldn't display properly if confidence wasn't set, and tidied up problem list handing
Changed terrain/travel so it isn't a list, fixed problem sizes in parks reports
Merge branch 'master' into hotfix-release-changes

* master:
  minify concat now works