Generates Twitter Bootstrap compatible breadcrumbs with the Crummy gem.

_breadcrumbs.html.erb

<% render_crumbs do |crumbs| %>
  <ul class="breadcrumb">
  <% crumbs.each_with_index do |crumb, index| %>
    <% if index < crumbs.size - 1 %>
      <li>
        <%= link_to *crumb %>
        <span class="divider">/</span>
      </li>
    <% else %>
      <li class="active"><%= crumb[0] %></li>
    <% end %>
  <% end %>
  </ul>
<% end %>