Upgraded websocket.
Add binary compiler for 4.01.0 by OCamlPro
Merge pull request #1833 from vbmithr/master

Upgraded websocket.
fix removal of typerep
Merge pull request #1834 from lefessan/4.01.0+bin-ocp.comp

Add binary compiler for 4.01.0 by OCamlPro
Merge pull request #1835 from janestreet/master

fix #1826
Added websocket 0.8.1
Merge pull request #1838 from vbmithr/master

Added websocket 0.8.1
Sync latest compiler pull requests
Merge pull request #1839 from bactrian/sync-prs-1395918800

Sync OCaml compiler PRs