Output messages with safe html

scipost/templates/scipost/messages.html

@@ -4,7 +4,7 @@
         <button type="button" class="close" data-dismiss="alert" aria-label="Close">
           <span aria-hidden="true">&times;</span>
         </button>
-        {{ message }}
+        {{ message|safe|escape }}
       </div>
     {% endfor %}
 </div>