add. Method generate_test_cohort_name to generate a formatted test cohort name.
add. Method generate_test_cohort_name to generate a formatted test cohort name.

rfaulkner/wikipedia_user_metrics,wikimedia/user_metrics,wikimedia/user_metrics,rfaulkner/wikipedia_user_metrics,wikimedia/user_metrics,wikimedia/analytics-user-metrics,rfaulkner/wikipedia_user_metrics,wikimedia/analytics-user-metrics,wikimedia/analytics-user-metrics