Add google-drive-ocamlfuse 0.4
Merge pull request #894 from astrada/master

Add google-drive-ocamlfuse 0.4
Revert "fix typo in Core 109.33.00 URLs." since upstream has changed again.

This reverts commit 4cebb911225632c92f6edaf6b325b7941e4cde0b.
See OCamlPro/opam-repository#891
Merge branch 'master' into add-corebuild
core: disable errors-for-warnings by default