Pkg.test for travis

[wookay]

try this

[wookay]

it seems that it run tests here https://travis-ci.org/github/leonardgoeke/AnyMOD.jl/builds/714776851#L402

now you probably make your path using

normpath(@__DIR__, "file/path")

example:

    # cd("..")
    # manipulate set_carrier.csv to test on smaller resolution, because otherwise Cbs times out during test
    carrier_df = CSV.read(normpath(@__DIR__, "..", "examples/demo/set_carrier.csv"))
```

[leonardgoeke]

Issue was resolved. Thanks!