fix all tests on windows

Hi there,

okay I just run the tests and they need some fixing on windows. I fixed all of them in a "not so nice" manner. Please have a look at it. I repeated my self a lot, but I wanted to show you the "quickfix" first.

this https://github.com/webcreate/util/pull/1 should be merged to make all tests pass (on windows). But honestly this is a real pain to test and create by hand.
The escaping and calling per CLI is so much broken on windows.

I'm sorry to make your code clumpsy, but maybe you like this as a good start to address the issue