memberships: user page (#126)

* reworked homepage and userhandler

* minor fixes for UI
diff --git a/core/auth/memberships/group.html b/core/auth/memberships/group.html
index ac432d8..f923232 100644
--- a/core/auth/memberships/group.html
+++ b/core/auth/memberships/group.html
@@ -43,7 +43,7 @@
         </tr>
         {{- range .Owners }}
         <tr>
-            <td>{{ . }}</td>
+            <td><a href="/user/{{ . }}">{{ . }}</a></td>
             <td>Delete</td>
         </tr>
         {{- end }}
@@ -56,7 +56,7 @@
         </tr>
         {{- range .Members }}
         <tr>
-            <td>{{ . }}</td>
+            <td><a href="/user/{{ . }}">{{ . }}</a></td>
             <td>Delete</td>
         </tr>
         {{- end }}