[#77614326] added a metrics service
[#77614326] monor indenting change
[#77614326] make dd singleton
[#77614326] added the schedule to procfile
[#77614326] PR comments: Mixin>Service
[#77614326] added routemaster/services/deliver_metric.rb
platform/add-datadog-monitoring-alerts-77614326 require deliver metric and iterate over available sunscriptions
schedule testing
[#77614326] added sub name to dd metric
[#77614326] added dd app key
[#77614326] fixed nested metric tags
[#77614326] tagging spec fixed
[#77614326] added env var to controll scheduling
[#77614326] added the schedule to procfile
[#77614326] added routemaster/services/deliver_metric.rb
[#77614326] added sub name to dd metric
[#77614326] added dd app key
[#77614326] fixed nested metric tags
[#77614326] tagging spec fixed
[#77614326] added env var to controll scheduling