matrix:

  include:

    - os: linux

      dist: trusty

      sudo: required

    - os: osx

before_script:

  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then

      export DEBIAN_FRONTEND=noninteractive;

      export APT_LISTCHANGES_FRONTEND=none;

      echo force-confold | sudo tee -a /etc/dpkg/dpkg.cfg;

      curl -k https://swift.im/keys/packages.key | sudo apt-key add -;