title: validates_confirmation_of with simple_form and error messages
body: <p>Using Rails 3.2.12 and simple_form 2.0.4</p>
  
  <p>On our User model we have:</p>
  
  <pre><code>  validates_confirmation_of :email, :on =&gt; :create, :message =&gt; "should match confirmation"
    validates_confirmation_of :password, :message =&gt; "Your password confirmation does not match the password entered"
  </code></pre>
  
  <p>so far so good, however, if you have a confirmation error on either of these fields (ie they don't match) simple_form only marks the regular field with error classes and an error messages.
  My client wants the matching _confirmation field to be marked in the same red styling / error classes.</p>
  
  <p>Is there a way to do this with simple_form without major re-engineering??</p>
  
  <p>This is in my view: (similar for password)</p>
  
  <pre><code>&lt;%= f.input :email_confirmation, :required =&gt; true, :label =&gt; "Verify Email Address", :input_html =&gt; {:rel =&gt; "tooltip", :title =&gt; "Please enter your email address again to prevent typing errors"} %&gt;
  </code></pre>
  
  <p>thanks</p>