Add test for TaskFilter#update_filter(params).
Add test for TaskFilter#update_filter(params).

digitalnatives/jobsworth,digitalnatives/jobsworth,ari/jobsworth,webstream-io/jobsworth,webstream-io/jobsworth,rafaspinola/jobsworth,rafaspinola/jobsworth,xuewenfei/jobsworth,xuewenfei/jobsworth,rafaspinola/jobsworth,webstream-io/jobsworth,digitalnatives/jobsworth,xuewenfei/jobsworth,webstream-io/jobsworth,digitalnatives/jobsworth,ari/jobsworth,rafaspinola/jobsworth,digitalnatives/jobsworth,ari/jobsworth,xuewenfei/jobsworth,ari/jobsworth