[TASK] Raise submodule pointer

Change-Id: I68aa2ad46e775198a6e0699e81aa168b2154dde6
Reviewed-on: https://review.typo3.org/19973
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn

extbase @ 856d701a

-Subproject commit 5fab404af04260986856580ab201c50b13e75af8
+Subproject commit 856d701a5a432f6779a23cf5322bc8ccd4812cc0

fluid @ 6404ab6c

-Subproject commit 627b8240c2334b49c6d17e7c834ad3f94394f3e0
+Subproject commit 6404ab6c27558b7899e48f513212003f08949a82