Add opam-publish 0.1~beta
opam-publish 0.1~beta works only for ocaml >= 4.01
Merge pull request #2977 from samoht/1.2

Add opam-publish 0.1~beta
Bugfix release atdgen-1.4.1
Merge pull request #2978 from mjambon/mj/atdgen-1.4.1

Bugfix release atdgen-1.4.1
Merge pull request #2899 from samoht/master

git 1.3.0
Sync latest compiler pull requests
Merge pull request #2979 from bactrian/sync-prs-1414713601

Sync OCaml compiler PRs
Partially revert #2922

This is causing a bug in 1.2 (see ocaml/opam#1831 and ocaml/opam#1834) and was working fine anyway.