Added logic to check HH Id field selections at runtime as well as in the
controller
Updated tests, improved coverage
Added a method for the VF remoting call;  improved the selector for HH
Ids-valid fields to watch for limit calls and not render installed
namespaced fields
Merge dev into feature/47-hhaccount-conversion
Merge pull request #730 from SalesforceFoundation/feature/47-hhaccount-conversion

Feature/47 hhaccount conversion
Merge dev into feature/678-healthcheck-prod-error