modules: update Gluon packages

6d2b807 lua-simple-uci: fix set()/tset()/section() with empty lists
5733253 libbabelhelper: adapt to new install paths due to package version change
ce7f69a use latest libbabelhelper
f76cfa8 mmfd: bump version to pull in latest adaptions to libbabelhelper
b4f97fb mmfd: bump version to pull in latest adaptions to libbabelhelper
706bef6 respondd: add diagnostics about failed module load (#171)
4f1a0c0 mmfd: bump version
f5cc0fb libbabelhelper: add initial version

modules

@@ -9,7 +9,7 @@ PACKAGES_OPENWRT_BRANCH=lede-17.01
 PACKAGES_OPENWRT_COMMIT=8844d7e2d4f717898c55c6345ad3b43fca52c440
 
 PACKAGES_GLUON_REPO=https://github.com/freifunk-gluon/packages.git
-PACKAGES_GLUON_COMMIT=8b65619f59c3bdce743c2f2fb2588fdd7079355a
+PACKAGES_GLUON_COMMIT=6d2b807fbaa70fd7b8e3895a76180e2d2f6966f6
 
 PACKAGES_ROUTING_REPO=https://github.com/openwrt-routing/packages.git
 PACKAGES_ROUTING_COMMIT=e656a6e0e69dd45b7caa24775bc86b6eb5dcfe7f