Fix pipeline status on Readme page

[groenborg]

As a user it is discouraging to see dead badges on the README.md, and can result in the notion that this is not a maintained repo.

Either you need to expose the pipeline fly -t <target> ep -p <pipeline name> or we need to remove the badges from the file. We do need a pipeline, so if concourse is not running or no longer desired we should change it to the community standard with is normally travis CI.

Our tests on windows however will stop work unless appveyer has a free tier for open source. That needs to be investigated

[groenborg]

From the lack of feedback I take it that I need to set up a travis pipeline? So I will do that in the near future.. I need access to the AWS bucket however to store the artifacts

[buep]

We still have the concourse setup running, so I think that can be used... we just have other priorities right now than fixing this issue.