db/migrate/0_install.rb~ in commontator-2.0.0 vs db/migrate/0_install.rb~ in commontator-2.0.1

@@ -25,10 +25,10 @@
     
     create_table "commontator_subscriptions" do |t|
       t.string   "subscriber_type", :null => false
       t.integer  "subscriber_id", :null => false
       t.integer  "thread_id", :null => false
-      t.integer  "unread", :default => 0
+      t.integer  "unread", :null => false, :default => 0
 
       t.timestamps
     end
 
     add_index :commontator_subscriptions, [:subscriber_type, :subscriber_id, :thread_id], :unique => true, :name => "index_c_s_on_s_type_and_s_id_and_t_id"