Add edition to usage ping

lib/gitlab/usage_data.rb

@@ -48,11 +48,14 @@ module Gitlab
       end
       def license_usage_data
-        usage_data = { uuid: current_application_settings.uuid,
-                       version: Gitlab::VERSION,
-                       active_user_count: User.active.count,
-                       recorded_at: Time.now,
-                       mattermost_enabled: Gitlab.config.mattermost.enabled }
+        usage_data = {
+          uuid: current_application_settings.uuid,
+          version: Gitlab::VERSION,
+          active_user_count: User.active.count,
+          recorded_at: Time.now,
+          mattermost_enabled: Gitlab.config.mattermost.enabled,
+          edition: 'CE'
+        }
         usage_data
       end

spec/lib/gitlab/usage_data_spec.rb

@@ -14,6 +14,7 @@ describe Gitlab::UsageData do
         counts
         recorded_at
         mattermost_enabled
+        edition
         version
         uuid
       ))