network interface fix VLANs and alias naming

multi-arch Docker images

new skip-error flag

support source and destination port for netem commands

cleanup docker files; use make for build

clean redundant error reporting; capture stress-ng errors and output

adding examples; fixing help

stress test target container (alexei-led#148)

working stress-ng with target container cgroup

use labels to specify k8s pod; support Docker v18.06.0+ version

additional container filter: use labels