Add option to toggle footer

layouts/partials/footer.html

@@ -1,4 +1,8 @@
+
+
 <hr/>
+
+{{if $.Site.Data.config.enableFooter}}
 <div class="page-end">
     <div class="backlinks-container">
         {{partial "backlinks.html" .}}
@@ -7,5 +11,6 @@
         {{partial "graph.html" .}}
     </div>
 </div>
+{{end}}
 
 {{partial "contact.html" .}}