Switch to side-by-side view

--- a/ForgeUserStats/forgeuserstats/templates/artifacts.html
+++ b/ForgeUserStats/forgeuserstats/templates/artifacts.html
@@ -9,7 +9,7 @@
 
 {% block content %}
 
-  {% if user %}
+  {% if user and (user.stats.visible or (c.user == user)) %}
     <div class="grid-20">
       <ul><li><a href="/userstats/{{user.username}}">Go back to general statistics</a></li></ul>
     </div>
@@ -47,6 +47,19 @@
       </table>
     </div>
     {% endif %}
+  {% else %}
+    {% if not user.stats.visible %}
+      <h2>Statistics not available</h2>
+      <div class="grid-20"> 
+        This user has set his or her preferences so that personal statistics are not visible
+        to other users of the forge.
+      </div>
+    {% else %}
+      <h2>Invalid user</h2>
+      <div class="grid-20"> 
+        You are looking for personal statistics of a user which doesn't exist on this forge. Check your url.
+      </div>
+    {% endif %}
   {% endif %}
 
 {% endblock %}