Working

### VERSION 0.6.5

* enhancements
  * Add Coercer for deserialize field from Yaml like ExtraValidator and Regex
  * Add Coercer for deserialize field from Csv value to ruby value like 'true' => true
  * Add missing module prefix Csv2hash
  * remove rule for dynmaic field with field is optional and not found

* feature
  * Add generator for configure csv2hash on Rails app

Use space after control keywords.<br>Never use `do` with multi-line `while`.