Add missing files from api06 merge.

diff --cc app/models/old_node_tag.rb
index 0000000000000000000000000000000000000000,3fd4bf86b4fb71504e5c92f58fa6da570f8f0c07..dd339ad307b6400d1fed177cea4020c89883a4b2
mode 000000,100644..100644
--- /dev/null
--- 2/app/models/old_node_tag.rb
+++ b/app/models/old_node_tag.rb
@@@ -1,0 -1,10 +1,10 @@@
 -  
+ class OldNodeTag < ActiveRecord::Base
+   set_table_name 'node_tags'
++
+   belongs_to :user
+ 
+   validates_presence_of :id, :version
+   validates_length_of :k, :v, :maximum => 255, :allow_blank => true
+   validates_uniqueness_of :id, :scope => [:k, :version]
+   validates_numericality_of :id, :version, :only_integer => true
+ end