Following the work at UMich (DS-587), this patch will cause the value of any configured item metadata field on the withdrawn item's tombstone page to display.
It is configured by the optional property 'webui.tombstone.reason=<metadatafield>' in dspace.cfg
If configuration property is not defined, the tombstone will appear without a reason display area.
If a given item lacks a value for configured metadata field, the reason displayed will be the value of the message: 'jsp.tombstone.noreason'
The prompt before the reason text is the value of the message: 'jsp.tombstone.reason'