mod/rm. added validation and detection of "is_user" flag in output view.  Removed user_request view.
mod/rm. added validation and detection of "is_user" flag in output view.  Removed user_request view.

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