anchor.diff:  
                 <li>
                   <%=  link_to edit_user_registration_path, id: 'my_account' do %>
  -                  <i class="fa fa-gear"></i>
  +                  <i class="fa fa-gear fa-fw"></i>
                     <%= t 'layouts.navbar.my_account' %>
                     <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
                     <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
  
positive.code:             <li>
                <a data-folder-id="none"
                   ng-click="remove_from_folder()">
                  <i class="fa fa-ban text-muted" ng-hide="get_current_feed().folder_id=='none'"></i>
                  <i class="fa fa-check" ng-show="get_current_feed().folder_id=='none'"></i>&nbsp;
                  <%= t 'layouts.navbar.folder_none' %>
                  <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
                  <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
                </a>
  
negative.code:             <li ng-show="current_feed">
                <a id="refresh-feed"
                   ng-click="refresh_feed()">
                  <i class="fa fa-repeat fa-fw"></i> <%= t 'layouts.navbar.refresh_button' %>
                  <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
                  <i class="fa fa-fw hidden-sm hidden-md hidden-lg"></i>
                </a>
  