Add an default_data entry for Chris Dent/cdent
Add an default_data entry for Chris Dent/cdent

He's operating on an independent email address but working
for Mirantis.

Change-Id: Iea6f5d68b7acf5640cd5a8bd56a63641fc06d62c

0xf2/stackalytics,openstack/stackalytics,Mirantis/stackalytics,openstack/stackalytics,Mirantis/stackalytics,stackforge/stackalytics,0xf2/stackalytics,openstack/stackalytics,Mirantis/stackalytics,stackforge/stackalytics,openstack/stackalytics,stackforge/stackalytics,0xf2/stackalytics,0xf2/stackalytics