remiprev/her — pull request #81 by pencil (2013-02-26 12:47:44+00:00)
Title: Handle and update relations after POST, PUT, DELETE

Her does not parse/handle/update relations after POST, PUT and DELETE:
``` ruby
class Foo::User
include Her::Model
has_many :comments
end
user = Foo::User.create name: "Test"
user.comments.first.id # fails because comment is a Hash and not a Foo::Comment
```

This PR fixes this.