anchor.diff:  <!--[if gt IE 8]><!--><html class="no-js" lang="en"><!--<![endif]-->
     <head>
       <meta charset="utf-8">
  -    <title><%= content_for?(:page_title) ? yield(:page_title) : GovukAdminTemplate::Config.app_title %></title>
  +    <title><%= content_for?(:page_title) ? yield(:page_title) : app_title %></title>
       <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
       <meta name="viewport" content="width=device-width, initial-scale=1">
       <script>(function(d){d.className=d.className.replace(/^no-js\b/,'js');}(document.documentElement));</script>
  
positive.code:   environment_style = GovukAdminTemplate.environment_style
    environment_label = GovukAdminTemplate.environment_label
    app_home_path = content_for?(:app_home_path) ? yield(:app_home_path) : root_path
  %>
  <!DOCTYPE html>
  <!--[if lte IE 7]><html class="no-js lte-ie7" lang="en"><![endif]-->
  
negative.code:                 <span class="icon-bar"></span>
                </a>
              <% end %>
              <%= link_to app_title, app_home_path, :class => 'navbar-brand' %>
              <% if environment_label %>
                <div class="environment-label">
                  <%= environment_label %>
  