Move from jbuilder to dune

[kc284]

Signed-off-by: Konstantina Chremmou konstantina.chremmou@citrix.com

[lindig]

Travis fails. I would consider replacing the Travis configuration with a one that uses xs-opam.

[kc284]

Travis is failing again; it's the same issue as in xcp-inventory; I don't fully understand what the issue is (on my local environment, for example, erratique.ch is resolved ok) - any tips?

[lindig]

I would move to a simpler setup (need to change the package names):

language: c
sudo: required
service: docker
install: wget https://raw.githubusercontent.com/ocaml/ocaml-ci-scripts/master/.travis-docker.sh
script: bash -ex .travis-docker.sh
env:
  global:
    - PACKAGE="xapi"
    - PINS="xapi:."
    - BASE_REMOTE="https://github.com/xapi-project/xs-opam.git"
  matrix:
    - DISTRO="debian-9-ocaml-4.07"