Sync latest compiler pull requests
Merge pull request #1876 from bactrian/sync-prs-1396998001

Sync OCaml compiler PRs
Updated the 'record_constructors' switch to point to the branch that contains the latest work
Sync latest compiler pull requests
mustache 0.0.2

thanks @mk270
Merge pull request #1883 from bactrian/sync-prs-1397084401

Sync OCaml compiler PRs
Merge pull request #1884 from rgrinberg/master

mustache 0.0.2
Merge pull request #1882 from bluddy/master

Updated the 'record_constructors' switch to latest branch
deriving-0.6.2