Put back impressions for new and bulletin.

Add view_count field to tag.

app/models/tag.rb

@@ -4,7 +4,9 @@ class Tag
   include Impressionist::Impressionable
   
   is_impressionable :counter_cache => { :column_name => :view_count }
+  
   field :key
+  field :view_count, :type => Integer, :default => 0
   #field :cloud_amper,:type: Integer,:default=> 0 
   belongs_to :module_app