initial commit from appmail

app/models/concerns/has_uuid.rb

@@ -0,0 +1,11 @@
+module HasUUID
+  def self.included(base)
+    base.class_eval do
+      random_string :uuid, :type => :uuid, :unique => true
+    end
+  end
+
+  def to_param
+    uuid
+  end
+end