Fixed #239

Proposals dashboard refactored to dashboard.
Added missing specs for the dashboard.

app/controllers/admin/dashboard/administrator_tasks_controller.rb

@@ -0,0 +1,26 @@
+class Admin::Dashboard::AdministratorTasksController < Admin::Dashboard::BaseController
+  helper_method :administrator_task
+
+  def index
+    authorize! :index, ::Dashboard::AdministratorTask
+    @administrator_tasks = ::Dashboard::AdministratorTask.pending
+  end
+
+  def edit
+    authorize! :edit, administrator_task
+  end
+
+  def update
+    authorize! :update, administrator_task
+
+    administrator_task.update(user: current_user, executed_at: Time.now)
+    redirect_to admin_dashboard_administrator_tasks_path,
+                { flash: { notice: t("admin.dashboard.administrator_tasks.update.success") } }
+  end
+
+  private
+
+  def administrator_task
+    @administrator_task ||= ::Dashboard::AdministratorTask.find(params[:id])
+  end
+end