Universal Bolt Menu template made with and for Bootstrap 3.0 by Corentin Mors (7 Jan 2014)

Menu Bolt Bootstrap

<nav class="navbar navbar-default" role="navigation">
  <!-- Brand and toggle get grouped for better mobile display -->
  <div class="navbar-header">
    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
      <span class="sr-only">Toggle navigation</span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
    </button>
    <a class="navbar-brand" href="{{ paths.root }}">{{ app.config.general.sitename }}</a>
  </div>

  <!-- Collect the nav links, forms, and other content for toggling -->
  <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
    <ul class="nav navbar-nav">

  <!-- Start of Twig Templating -->     
  {% for item in menu %}

    <li class="{% if item.submenu is defined %}dropdown{% else %} index-{{ loop.index }}{% if loop.first %} first{% endif %}{% if loop.last %} last{% endif %}{% if item|current %} active{% endif %}{% endif %}">

        <a href="{% if item.submenu is defined %}#{% else %}{{ item.link }}{% endif %}" {% if item.title is defined %}title='{{ item.title|escape }}'{% endif %}
           class='{% if item.submenu is defined %}dropdown-toggle{% else %}{% if item.class is defined %}{{item.class}}{% endif %}{% endif %}' {% if item.submenu is defined %}data-toggle="dropdown"{% endif %}>
            {{item.label}} {% if item.submenu is defined %}<b class="caret"></b>{% endif %}
        </a>

        {% if item.submenu is defined %}
            <ul class="dropdown-menu">
                {% for item in item.submenu %}
                    <li>
                        <a href="{{ item.link }}" {% if item.title is defined %}title='{{ item.title|escape }}'{% endif %}>
                            {{item.label}}
                        </a>
                    </li>
                {% endfor %}
            </ul>
        {% endif %}
        
    </li>

  {% endfor %}
	
 <!-- End of Twig -->
 
      </ul>
   </div><!--/.nav-collapse -->
</nav><!-- /navbar-inner -->