add omd.1.2.3
Merge pull request #3109 from pw374/master

add omd.1.2.3
Add MQTT message parser library.
Merge pull request #3111 from j0sh/master

Add MQTT message parser library.
New KaSim package

I would have used files/KaSim.install if I knew how to solve the .exe issue ...
Sync latest compiler pull requests
Merge pull request #3113 from bactrian/sync-prs-1417046401

Sync OCaml compiler PRs
stringext 1.1.0
zenon.0.7.1 - via opam-publish
Merge pull request #3110 from rgrinberg/master

stringext 1.1.0
Merge pull request #3112 from pirbo/pullreq

New KaSim package
New Sundials package.
Add external deps to pass Travis testing.
Add SLAP 0.2.2
contrain extprot with ocaml version
Mikmatch 1.0.8: removed dependency on specific version of the pcre
package; allowing ocaml 4.02; using archive from github.
mikmatch.1.0.8: fix checksum
+github.0.9.3
Merge pull request #3117 from camlunity/master

constrain extprot with ocaml version
Merge pull request #3118 from mjambon/master

Mikmatch 1.0.8