Travis CI config for code coverage and unittest

{
  "language": "python",
  "python": "3.5",
  "install": [
    "pip install -r varia/requirements.txt",
    "pip install coverage",
    "pip install codecov"
  ],
  "before_script": [
    "export DISPLAY=:99.0",
    "sh -e /etc/init.d/xvfb start",
    "sleep 3"
  ],
  "script": [
    "coverage run --source=./,./mc,./mc/win,./mc/dlg -m unittest discover -s tests",
    "coverage report -m"
  ],
  "after_success": [
    "codecov"
  ],
  "group": "stable",
  "dist": "trusty",
  "os": "linux"
}