Updates metadot: aafa630 Check for installed dependencies at metadot_deps

diff --git a/metadot b/metadot
index 43ef7027c755ce37c49660906ee8f4ac81eada4c..aafa6303f1c2c1da0eabce337722a82f55521546 160000 (submodule)
--- a/metadot
+++ b/metadot
@@ -1 +1 @@
-Subproject commit 43ef7027c755ce37c49660906ee8f4ac81eada4c
+Subproject commit aafa6303f1c2c1da0eabce337722a82f55521546