Integrate Rails flash alert/notice messages into Bootstrap 3 dismissible alert

<% unless flash.blank? %>
<div class='row'>
 <div class='col-sm-12'>
 <div id='flash'>
 <% flash.each do |key, value| %>
 <div class='flash alert alert-dismissible fade in alert-<%= key == 'notice' ? 'info' : 'danger' %>'>
 <button type='button' class='close' data-dismiss='alert' aria-label='Close'>
 <span aria-hidden='true'>&times;</span>
 </button>
 <%= value %>
 </div>
 <% end %>
 </div>
 </div>
</div>
<% end %>