addons/docker: Move check for whether /var/lib/docker is a mountpoint to the script that starts the daemon
addons/docker: Indent wrapdocker script
cli: Remove docker info from `devstep info` (it is too verbose already)
cli: Mention that `devstep build` will change WORKDIR as part of the build
cli: Remove docker volumes at all times when building images
buildpacks/python: Do not reinstall all the time (yes, that code is needed :)
cli: Fix existing containers count on `devstep clean`