eliom.4.1.0

eliom.4.1.0
Updated pomap
Add gapi-ocaml 0.2.6 and google-drive-ocamlfuse 0.5.10
Fix conduit constraints
add batteries 2.3.1
Disable -warn-error so that ocamlclean builds with OCaml 4.02.0.
Update mindstorm checksum.
Make warning 3 (deprecated feature) non-fatal for the mezzo build.
Added initial Slacko release
libres3 doesn't work with ocsigenserver.2.5 yet
Added version restriction for 4.01+
latest obuild
Merge pull request #2794 from mmottl/master

Updated pomap
Merge pull request #2795 from astrada/master

Add gapi-ocaml 0.2.6 and google-drive-ocamlfuse 0.5.10
Merge pull request #2796 from samoht/master

Fix conduit constraints
Merge pull request #2801 from yallop/mindstorm-checksum

Update mindstorm checksum.
Merge pull request #2802 from yallop/mezzo-deprecated-warning

Make warning 3 (deprecated feature) non-fatal for the mezzo build.
Merge pull request #2803 from Leonidas-from-XIV/feature/slacko

Added initial Slacko release
Merge pull request #2806 from edwintorok/libres3_fix

libres3 doesn't work with ocsigenserver.2.5 yet
Merge pull request #2797 from gasche/master

add batteries 2.3.1