Add configurations for headless browser for travis
Add configurations for headless browser for travis

SnapFresh/SnapFresh,jwieringa/AllIncomeFoods,SnapFresh/SnapFresh,ysiadf/AllIncomeFoods,rubyforgood/AllIncomeFoods,jwieringa/AllIncomeFoods,ysiadf/AllIncomeFoods,ysiadf/AllIncomeFoods,ysiadf/AllIncomeFoods,rubyforgood/AllIncomeFoods,rubyforgood/AllIncomeFoods,SnapFresh/SnapFresh,SnapFresh/SnapFresh,jwieringa/AllIncomeFoods,rubyforgood/AllIncomeFoods,SnapFresh/SnapFresh,jwieringa/AllIncomeFoods,ysiadf/AllIncomeFoods,rubyforgood/AllIncomeFoods,jwieringa/AllIncomeFoods