Squashed commit of the following:

commit bad76721
Author: Alex van de Sandt <alex@avandesa.dev>
Date:   Mon Jan 13 16:10:46 2020 -0500

    Add appveyor badges

commit f2663da5
Author: Alex van de Sandt <alex@avandesa.dev>
Date:   Mon Jan 13 15:59:03 2020 -0500

    Rename appveyor config file

commit fc1ec4b9
Author: Alex van de Sandt <alex@avandesa.dev>
Date:   Mon Jan 13 15:57:05 2020 -0500

    Remove redundant channels

commit 9728cd69
Author: Alex van de Sandt <alex@avandesa.dev>
Date:   Mon Jan 13 15:53:47 2020 -0500

    Add appveyor config