Encode user_id and email before dumping them
Encode user_id and email before dumping them

Change-Id: Icce8dce6477bfce28854484185d5303eff2888be

openstack/stackalytics,mohitsethi/stackalytics,Mirantis/stackalytics,0xf2/stackalytics,mhharsh/stackalytics,Code-Fly/stackalytics,mohitsethi/stackalytics,openstack/stackalytics,dliu2015/stackalytics_zanata,AlexanderYAPPO/stackalytics,mhharsh/stackalytics,AlexanderYAPPO/stackalytics,Solinea/stackalytics,openstack/stackalytics,openstack/stackalytics,mhharsh/stackalytics,Code-Fly/stackalytics,0xf2/stackalytics,0xf2/stackalytics,dliu2015/stackalytics_zanata,danielmellado/stackalytics,Solinea/stackalytics,Mirantis/stackalytics,stackforge/stackalytics,Solinea/stackalytics,AlexanderYAPPO/stackalytics,0xf2/stackalytics,dliu2015/stackalytics_zanata,danielmellado/stackalytics,Code-Fly/stackalytics,stackforge/stackalytics,danielmellado/stackalytics,mohitsethi/stackalytics,stackforge/stackalytics,Mirantis/stackalytics