remiprev/her — pull request #274 by jimmynguyc (2014-08-04 05:56:59+00:00)
Title: Feature populate active support validation errors

I thought it would be a good idea to automatically populate the ActiveSupport validation errors when the JSON responded with a ActiveModel::Errors.messages like hash.

Required format for json[:errors]

```ruby
{
:email => ["can't be empty","is invalid"],
:password => ["is too short"]
}
```