Allow specified metadata DateRange fields to be formatted differently from the setting in datetime.conf. For AMNH for example, one DateRange field needs to span millennia and eons so the setting should be "original" to remain as the defined expression entered, like "Shang Dynasty". All other dates are administrative and need to be formatted as "delimited', for m/d/y format.
add setting at metadata element level which will override whatever’s in app.conf
Implemented in dev/representationBundle and develop branches. There is now a "dateFormat" setting for DateRange metadata elements. Possible values are the same as those for the "dateFormat" option in datetime.conf. Settings at the metadata element level override those in datetime.conf for the specific element.