Updated for Bootstrap v3. Fixing issue with Next/Previous not using arrows. Fixing issue where in (in previous Bootstrap comment) arrows were not disabled if "showAlways" was true.

pagination.html.twig

{#
  Source: http://dev.dbl-a.com/symfony-2-0/symfony2-and-twig-pagination/
  Updated by: Simon Schick <[email protected]>

  Parameters:
    * currentFilters (array) : associative array that contains the current route-arguments
    * currentPage (int) : the current page you are in
    * paginationPath (string) : the route name to use for links
    * showAlwaysFirstAndLast (bool) : Always show first and last link (just disabled)
    * lastPage (int) : represents the total number of existing pages
#}
{% spaceless %}
    {% if lastPage > 1 %}

    {# the number of first and last pages to be displayed #}
    {% set extremePagesLimit = 3 %}

    {# the number of pages that are displayed around the active page #}
    {% set nearbyPagesLimit = 2 %}

    <div class="row">
        <ul class="pagination">
        {% if currentPage > 1 %}
            <li><a href="{{ paginationPath }}{{ currentPage-1 }}">&laquo;</a></li>

            {% for i in range(1, extremePagesLimit) if ( i < currentPage - nearbyPagesLimit ) %}
                <li><a href="{{ paginationPath }}{{ i }}">{{ i }}</a></li>
            {% endfor %}

            {% if extremePagesLimit + 1 < currentPage - nearbyPagesLimit %}
                <li class="disabled"><a>...</a></li>
            {% endif %}

            {% for i in range(currentPage-nearbyPagesLimit, currentPage-1) if ( i > 0 ) %}
                <li><a href="{{ paginationPath }}{{ i }}">{{ i }}</a></li>
            {% endfor %}
        {% elseif showAlwaysFirstAndLast %}
            <li class="disabled"><a>&laquo;</a></li>
        {% endif %}

        <li class="active"><a>{{ currentPage }}</a></li>

        {% if currentPage < lastPage %}
            {% for i in range(currentPage+1, currentPage + nearbyPagesLimit) if ( i <= lastPage ) %}
                <li><a href="{{ paginationPath }}{{ i }}">{{ i }}</a></li>
            {% endfor %}

            {% if  (lastPage - extremePagesLimit) > (currentPage + nearbyPagesLimit) %}
               <li class="disabled"><a>...</a></li>
            {% endif %}

            {% for i in range(lastPage - extremePagesLimit+1, lastPage) if ( i > currentPage + nearbyPagesLimit ) %}
               <li><a href="{{ paginationPath }}{{ i }}">{{ i }}</a></li>
            {% endfor %}

            <li><a href="{{ paginationPath }}{{ currentPage+1 }}">&raquo;</a></li>
        {% elseif showAlwaysFirstAndLast %}
                <li class="disabled"><a>&raquo;</a></li>
        {% endif %}
        </ul>
    </div>
{% endif %}
{% endspaceless %}

Thank you.