Changes to GET /stats

added the new optional query request parameter poll

added the required property active_users/joined_last_30_days to the response with the 200 status

added the required property polls/items/compared_entities/added_last_30_days to the response with the 200 status

added the required property polls/items/comparisons/added_current_week to the response with the 200 status

added the required property polls/items/comparisons/added_last_30_days to the response with the 200 status

removed the required property comparison_count from the response with the 200 status

removed the required property last_month_comparison_count from the response with the 200 status

removed the required property last_month_user_count from the response with the 200 status

removed the required property last_month_video_count from the response with the 200 status

removed the required property user_count from the response with the 200 status

removed the required property video_count from the response with the 200 status

added the required property active_users to the response with the 200 status

added the required property polls to the response with the 200 status