This commit changes the order stacks and nodes are displayed.
For example, running "docker stack ls" is expected to
display the following list:
NAME SERVICES
service-1 1
service-2 1
service-10 1
However, currently this is what is printed:
NAME SERVICES
service-1 1
service-10 1
service-2 1
To fix this, "docker stack ls" and "docker node ls" are using
natural sorting to make it more human readable.
Signed-off-by: Boaz Shuster <ripcurld.github@gmail.com>
