set up travis testing

[KamilSJaron]

Set up a travis for integration testing

[KamilSJaron]

The testing of installation will be done only for the pythonic version.

I get strange pip errors for installation of dependencies. Maybe the easiest would be to contact someone from Travis as they are an enterprise...

Figure out how to install matplot lib I need. Somehow it complains about the version. Maybe finally read the docs of travis