title: Specify HTML method in Formtastic action link
body: <p>In a Formtastic <code>semantic_form_for</code>, I want the <em>Cancel</em> link to point to the destroy action of a controller via the <code>delete</code> method:</p>
  
  <pre><code>= semantic_form_for @user, url: password_reset_path(params[:id]) do |f|
      = f.inputs do
          = f.input :password
          = f.input :password_confirmation
      = f.actions do
          = f.action :submit, label: 'Reset password'
          = f.action :cancel, label: 'Cancel password reset',
              as: :link, url: password_reset_path(params[:id]), html: { method: :delete }
  </code></pre>
  
  <p>It is the <code>html: { method: :delete }</code> part that I would like to get to work, so that my temporary resource "password reset" is immediately destroyed via <code>password_resets#destroy</code> when the user clicks on the <em>Cancel</em> link.</p>
  
  <p>Note that this is not about specifying the HTML method for the entire form (as has been asked elsewhere).</p>
  
  <p>The above code ignores the DELETE method, so that I wonder how I can accomplish this?</p>