updates for zoninator export support
added caption to template #2
Driving changes - slug, subtitle, credit, distributor
Merge pull request #48 from Postmedia-Digital/zone_export

Driving changes - slug, subtitle, credit, distributor
Merge pull request #49 from Postmedia/zone_export

Zone export
modifications to slug and added story url
Merge pull request #50 from Postmedia/zone_export

modifications to slug and added story url
added capabilities check on zone export callback
Merge pull request #51 from Postmedia/22249

added capabilities check on zone export callback