update service program to serve real frontend

diff --git a/gummikraken b/gummikraken
index fad8af68f4c118acb2614de91d4528d647f61628..88caa199e5926833e96c94723612312eea229803 160000 (submodule)
--- a/gummikraken
+++ b/gummikraken
@@ -1 +1 @@
-Subproject commit fad8af68f4c118acb2614de91d4528d647f61628
+Subproject commit 88caa199e5926833e96c94723612312eea229803