Revisit install of docker-compose

[haxorof]

It seems to be problematic to use pip to install docker-compose and the best way is to implement it in a way as described in the official documentation: https://docs.docker.com/compose/install/#install-compose

There are different ways to install it and the "Alternative Install Option" is the way to do it.

[haxorof]

This shall also address issues seen in #62 and maybe parts of #56

[haxorof]

From official documentation:

Compose can be installed from pypi using pip. If you install using pip, we recommend that you use a virtualenv because many operating systems have python system packages that conflict with docker-compose dependencies.