now default options can be chosen by developer at init

vendor/built_in_modules/announcement/init.rb

@@ -24,6 +24,7 @@ module Announcement
     widgets do
       default_widget do
         query 'Bulletin.any_of( {deadline: nil,:postdate.lte => Time.now} , {:deadline.gte => Time.now,:postdate.lte => Time.now} )'
+        enable ["typeA","typeC"]
         image :image
         field :postdate
         link_field :title,{:method => 'panel_announcement_front_end_bulletin_path',:args=>:self}