Merge pull request #1748 from janestreet/core-111.03.00

Core 111.03.00
cowabloga 0.0.5 depends on cstruct

This used to be provided by cohttp, but removed in d688ae0e04c1a212da35ff265bee9d3d9b208b51
Merge pull request #1758 from mirage/master

cowabloga 0.0.5 depends on cstruct
Added receive-mail.0.1.0 package. Upgraded facebook-sdk-for-ocaml to version 0.2.7
Merge branch 'master' of github.com:ocaml/opam-repository
Added facebook-sdk-for-ocaml.0.2.8 to match Cohttp version 0.10.1
blogs.janestreet.com -> ocaml.janestreet.com
Merge pull request #1760 from janestreet/core-111.03.00

blogs.janestreet.com -> ocaml.janestreet.com
Fix opam2web cow constraint to exclude 0.9
Merge pull request #1762 from dsheets/master

Fix opam2web cow constraint to exclude 0.9
+github.0.8.1
Merge pull request #1763 from mirage/master

+github.0.8.1
Added version 1.8.2 of OCaml EFL.
opium 0.4.0
opam2web: add bug-reports
+opam2web.1.3.1
Merge pull request #1766 from dsheets/master

+opam2web 1.3.1
Merge pull request #1765 from rgrinberg/opium_040

opium 0.4.0
install reins.cmi (Closes #1755)
+ ocurl 0.7.0