fixed tag and pending post tests, added category multiget helper to tag, post/unapproval/post version in progress still

app/models/unapproval.rb

@@ -0,0 +1,6 @@
+class Unapproval < ActiveRecord::Base
+  class Error < Exception ; end
+  
+  belongs_to :unapprover, :class_name => "User"
+  validates_presence_of :reason, :unapprover_id, :unapprover_ip_addr
+end