Copyright (c) 2013 Globo.com

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
   limitations under the License.

Based on Powerdns-on-rails 
    https://github.com/kennethkalmer/powerdns-on-rails
    Copyright (c) 2009 Kenneth Kalmer
    Released under the MIT License.
