Tests if repository json files conform to the json schema.
If all resources (images/icons/website URLs) they mention actually
exists.
And can also test writing images and the FAT modification code.
Instead of using 'pi' as default, try to get the username of
the current user from the OS.
May not always work. (e.g. some Windows users may not have
setup a username themselves, but may be using a default user
created by the PC vendor).
Closes#497
Just feed them through the libarchive workflow as well.
Prevents issues on Windows/osx when writing uncompressed images
that come from the Internet.
Ref #473
Only supported when NetworkManager is used on the Linux distro
as wpa_supplicant itself does not support reading PSKs through
DBus, only setting them.
Closes#457
