title: How to generate a radio-inline label with simple_form and bootstrap?
body: <p>I'm using:</p>
  
  <pre><code>&lt;%= simple_form_for @visitor, html: {class: 'form-inline'} do |f| %&gt;
      &lt;%= f.error_notification %&gt;
      &lt;%= f.input :favorite, label: false, as: :radio_buttons %&gt;
      &lt;%= f.submit "Choose!", :class =&gt; "btn btn-primary"%&gt;
  &lt;% end %&gt;
  </code></pre>
  
  <p>And I get this html:</p>
  
  <pre><code>&lt;div class="control-group radio_buttons required visitor_favourite"&gt;
      &lt;div class="controls"&gt;
          &lt;label class="radio"&gt;
              &lt;input class="radio_buttons required" id="visitor_favourite_true" name="visitor[favourite]" type="radio" value="true" /&gt;
              Yes
          &lt;/label&gt;
          &lt;label class="radio"&gt;
              &lt;input class="radio_buttons required" id="visitor_favourite_false" name="visitor[favourite]" type="radio" value="false" /&gt;
              No
          &lt;/label&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>But what I'm looking for is a way to generate the labels as radio-inline because that is the style i want:</p>
  
  <pre><code>&lt;label class="radio-inline"&gt; 
  </code></pre>
  
  <p>There is a similar question <a href="https://groups.google.com/forum/#!searchin/plataformatec-simpleform/radio-inline/plataformatec-simpleform/luBwsduu9mk/sogbhsDt8O4J" rel="nofollow">here</a> but for the "radio inline" class and desn't work as to generate radio-inline.</p>
  
  <p>I'm using simple_form 3.0.2 and tried 3.1.0rc2 and Bootstrap 3.2.0 with rails 4.1.4
  Anyway or method to solve this?</p>