Update Sachi's affiliation to independent
Update Sachi's affiliation to independent

Change-Id: I062278ba6b38ccd661f04593267b1b23d7faf5b1

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