Signed-off-by: Manish Tomar <manish.tomar@docker.com> Signed-off-by: wang yan <wangyan@vmware.com>
Signed-off-by: Tianon Gravi <admwiggin@gmail.com>
Split challenges into its own package. Avoids possible import cycle with challenges from client. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)