set version to 0.4.1

smash/web/templates/_base.html

@@ -252,7 +252,7 @@ desired effect
         {% block footer %}
             <!-- To the right -->
             <div class="pull-right hidden-xs">
-                Version: <strong>preview 0.4.0</strong> (29 Mar 2017)
+                Version: <strong>preview 0.4.1</strong> (03 Apr 2017)
             </div>
 
             <!-- Default to the left -->