ott: clean up the string syntax patch
bson: better fix for the dependency problem with js_of_ocaml and deriving
Dropping cryotkit-sha512

I don't maintain this anymore, this is lagging several versions behind
cryptokit (and this patch never got included), and now there is better
ways to do crypto in OCaml.
Merge pull request #2596 from UnixJunkie/cocc

Cocc
Merge pull request #2628 from vbmithr/master

Dropping cryotkit-sha512
pfff: doesnt compile on OCaml 4.02.0

see facebook/pfff#94
+benchmark 1.3.1
Benchmark < 1.3.1 does not compile well with OCaml ≥ 4.02.0

See https://github.com/Chris00/ocaml-benchmark/pull/4
+odbc 3.0
Improve odbc package description.
add xmldiff 0.2
force ocaml >= 4.00.0
Merge pull request #2626 from avsm/master

pfff depends on camlp4
Merge pull request #2630 from zoggy/master

add xmldiff 0.2
Merge pull request #2629 from Chris00/bench

+benchmark 1.3.1
Merge pull request #2604 from yallop/udunits-depexts

Add expat depexts for udunits.
Merge pull request #2627 from planar/bson-deps

bson: better fix for the dependency problem with js_of_ocaml and deriving
Merge pull request #2625 from planar/wget-fix-build

wget: fix build commands
Merge pull request #2624 from planar/cudf.0.6.3-fix-build

cudf.0.6.3: fix build commands
Merge pull request #2622 from whitequark/master

+ppx_deriving_yojson.1.0