anchor.diff:      <dl class="dl-horizontal">
         <%- Rails.application.instance_variables.sort.each do |symbol| %>
             <dt><%= symbol %></dt>
  -          <dd><samp><%= Rails.application.instance_variable_get(symbol) %></samp></dd>
  +          <dd><samp><%= Rails.application.instance_variable_get(symbol).class.name %></samp></dd>
         <%- end %>
       </dl>
     </div>
  
positive.code:   <li class="active"><a href="#config" role="tab" data-toggle="tab">Configuration</a></li>
    <li><a href="#application" role="tab" data-toggle="tab">Application</a></li>
    <li><a href="#initializers" role="tab" data-toggle="tab">Initializers</a></li>
    <li><a href="#generators" role="tab" data-toggle="tab">Generators</a></li>
  </ul>
  
  <div class="tab-content">
  
negative.code:         <li><%= initializer.name %> - <%= initializer.instance_variable_get('@context').class.name %></li>
        <%- end %>
      </ol>
    </div>
    <div class="tab-pane" id="middleware">
      <ol>
        <%- Rails.application.middleware.each do |middleware| %>
            <li><%= middleware.name %></li>
        <%- end %>
      </ol>
    </div>
    <div class="tab-pane" id="railties">
      <p>
        Rails configuration.railties_order = <%= Rails.configuration.railties_order %>
      </p>
      <ol>
        <%- Rails.application.send(:ordered_railties).each do |railtie| %>
            <li><%= railtie.railtie_name %> - <%= railtie.class.name %></li>
        <%- end %>
      </ol>
    </div>
    <div class="tab-pane" id="engines">
      <ol>
        <%- ::Rails::Engine.descendants.sort_by(&:name).each do |engine_class| %>
            <%- next if engine_class.abstract_railtie? -%>
            <%- engine = engine_class.instance %>
            <li><%= engine.engine_name %> - <%= engine_class.name %> <%= engine_class.called_from %> <%= '<b>ISOLATED</b>'.html_safe if engine_class.isolated? %> </li>
        <%- end %>
      </ol>
    </div>
    <div class="tab-pane" id="timedate">
      <% # http://www.foragoodstrftime.com/ %>
      <%- today, now = Date.today, Time.now %>
      <h3>Date Formats</h3>
      <table class="table table-condensed">
        <tr>
          <th>Format</th>
          <th>Example</th>
          <th>Formatter</th>
        </tr>
        <tr>
          <td><i>default</i></td>
          <td><%= today.to_s %></td>
          <td></td>
        </tr>
        <%- Date::DATE_FORMATS.sort.each do |format,formatter| %>
            <tr>
            <td>:<%= format %></td>
            <td><%= today.to_s(format) %></td>
            <td><%= formatter.respond_to?(:call) ? 'Dynamic Proc' : formatter %></td>
            </tr>
        <%- end %>
      </table>
      <h3>Time Formats</h3>
      <table class="table table-condensed">
        <tr>
          <th>Format</th>
          <th>Example</th>
          <th>Formatter</th>
        </tr>
        <tr>
          <td><i>default</i></td>
          <td><%= now.to_s %></td>
          <td></td>
        </tr>
        <%- Time::DATE_FORMATS.sort.each do |format,formatter| %>
            <tr>
              <td>:<%= format %></td>
              <td><%= today.to_s(format) %></td>
              <td><%= formatter.respond_to?(:call) ? 'Dynamic Proc' : formatter %></td>
            </tr>
        <%- end %>
      </table>
    </div>
    <div class="tab-pane" id="generators">
      <h2>Configs</h2>
  