fix announcement loading failed caused by impression. disable pinyin search.

vendor/built_in_modules/announcement/app/controllers/panel/announcement/front_end/bulletins_controller.rb

@@ -37,7 +37,7 @@ class Panel::Announcement::FrontEnd::BulletinsController < OrbitWidgetController
     else
       @bulletin = Bulletin.all.can_display.where(_id: params[:id]).first
       unless @bulletin.disable?
-        impressionist(@bulletin)
+        #impressionist(@bulletin)
         get_categorys  
       else
          render :nothing => true, :status => 403