Adding user Ian Howell to default_data.json
Adding user Ian Howell to default_data.json

Change-Id: I79347d0173bcdad2b9043cd33d7379bed1a5002d

openstack/stackalytics,openstack/stackalytics,stackforge/stackalytics,openstack/stackalytics,stackforge/stackalytics,stackforge/stackalytics,openstack/stackalytics