Fix layout issues for bobcat theme, so footer sticks to bottom

i.e. even when page has little/no content

tailbone/templates/themes/bobcat/base.mako

@@ -164,6 +164,8 @@
       </div>
     </section>
 
+    <div class="content-wrapper">
+
     ## Page Body
     <section id="page-body">
 
@@ -198,6 +200,8 @@
       </div>
     </footer>
 
+    </div><!-- content-wrapper -->
+
   </body>
 </html>