initial commit from appmail

app/controllers/admin/stats_controller.rb

@@ -0,0 +1,10 @@
+class Admin::StatsController < ApplicationController
+
+  before_action :admin_required
+
+  def stats
+    @stats = Statistic.global
+    @queue_size = QueuedMessage.unlocked.retriable.count
+  end
+
+end