title: Active Admin Namespaced Model Form
body: <p>I am having issues with AA (1.0.0pre) and Rails 4.1.3.  I have a namespaced model:</p>
  
  <pre><code>Surveyor::Survey
  </code></pre>
  
  <p>for which I want an admin form for. But the name attributes of the inputs does not reflect the namespacing of the attributes</p>
  
  <pre><code>&lt;input id="survey_name" maxlength="255" name="survey[name]" type="text"&gt;
  </code></pre>
  
  <p>instead of</p>
  
  <pre><code>&lt;input id="surveyor_survey_name" maxlength="255" name="surveyor_survey[name]" type="text"&gt;
  </code></pre>
  
  <p>Also this is working fine in Rails 3.2.x and AA .6.  Lastly when inspecting the form_builder element i found this:</p>
  
  <pre><code>#&lt;ActiveAdmin::Resource::Name:0x0000010a9d86a8
              @collection="surveyor_surveys",
              @element="surveyor_survey",
              @human="Surveyor survey",
              @i18n_key=:surveyor_survey,
              @klass=Surveyor::Survey(id: integer, name: string, description: text, attempts_number: integer, finished: boolean, active: boolean, created_at: datetime, updated_at: datetime),
              @name="SurveyorSurvey",
              @param_key="surveyor_survey",
              @plural="surveyor_surveys",
              @route_key="surveyor_surveys",
              @singular="surveyor_survey",
              @singular_route_key="surveyor_survey"&gt;=&gt;#&lt;ActiveAdmin::Resource:0x0000010a9d8f90 ...&gt;
  </code></pre>
  
  <p>Which makes it seem like it knows the correct namespacing but its not displaying on the form inputs for some reason.  Any ideas?</p>