Fixed :validate_debian_mirror: check mirror_host instead of proxy_host.
Do not specify local variable for Debian mirror.
Use custom Debian mirror if DEBIAN_MIRROR is specified.
Added rake vm:ssh command for establishing SSH connection.
Do not try to print exported_env.
Tell user if we are using custom Debian mirror for provisioning.
Tell user if we are not using custom Debian mirror.
Fixed variable name.
Use DEBIAN_MIRROR when provisioning.
Do not print DEBIAN_MIRROR twice.
Added some sed magic to handle URL correctly.