Added more testing around nulls/empties in JSON input;
Added more testing around nulls/empties in JSON input;

MCDong/barbican,cloudkeep/barbican,jfwood/barbican-1,openstack/barbican,MCDong/barbican,jfwood/barbican-1,jmvrbanac/barbican,jmvrbanac/barbican,cneill/barbican,cloudkeep/barbican,openstack/barbican,cneill/barbican