Merge pull request #1094 from janestreet/core-109.42.00

Core 109.42.00
Merge pull request #1127 from zoggy/master

Add rdf 0.7.0 (formerly called ocaml-rdf until version 0.6.0)
zipperposition doesn't compile on 4.01.0
syntax error
Merge https://github.com/OCamlPro/opam-repository
travis: fix up the diff grepper
Merge branch 'travis'
+cow.0.7.0
merlin: release v1.4
Add irc-client.0.1.1

The main change is that Lwt is now an optional dependency.

Signed-off-by: John Else <john.else@citrix.com>
Merge pull request #1133 from trefis/master

merlin: release v1.4
Merge pull request #1132 from mirage/master

+cow.0.7.0
New package for development version of sedlex.
Merge branch 'master' of https://github.com/OCamlPro/opam-repository
Add archive checksum for irc-client.0.1.1

Signed-off-by: John Else <john.else@citrix.com>
Merge pull request #1134 from johnelse/irc-client.0.1.1

Add irc-client.0.1.1
travis: updates to try using opam-1.0, opam-1.1 and ocaml 3.12.1
Merge pull request #1136 from mirage/master

travis: updates to try using opam-1.0, opam-1.1 and ocaml 3.12.1
add rdf.0.7.1
travis: fix with opam 1.0 installability test