fix(contrib): add --insecure-registry flag for docker 1.3.2

Deis' registry is insecure. Docker is secure-by-default, which means
that we must now whitelist insecure registries on each and every daemon.
fix(contrib): add other RFC1918 private addresses
chore(builder): bump Docker to 1.3.2
fix(contrib/coreos): fix usage of --insecure-registry