anchor.diff:    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
     <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
     <%= csrf_meta_tags %>
  +  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
     <!-- Latest compiled and minified CSS -->
     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
   
  
positive.code:             <li><a href="/">Home</a></li>
              <!-- If user logged in and there is a session id then show below -->
              <% if session[:user_id] %>
                
  
                <li><%= link_to "logout", {:controller=> "sessions", :action=> "destroy"}, method: :delete %></li>
  
  
negative.code:                 <li><a href="/users">Clients</a></li>
                <% end %>
                <li><a href="/users/<%= session[:user_id] %>"><span class="glyphicon glyphicon-user"></span>  <%= @current_user.name %></a></li>
  
              <% else %>
  
                <li><a href="/users/new">Register</a></li>
                <li><a href="/">Login</a></li>
  
              <% end %>
  
            </ul>
  
          </div><!--/.nav-collapse -->
  