CRM-12911 - API HRJob.duplicate - Allow overriding selected fields
CRM-12911 - HRJob.duplicate - Fix handling of is_primary
StandardForm - Move save/reset handlers to named (overridable) functions
CRM-12911 - jobtabapp - Change "Duplicate" from a form-button to a nav-action with its own screen
CRM-12911 - jobtabapp/general - When copying, tweak the labels in the view