fix for docker rm issue

comparing the b2d/tcl init to the d2d one

http://git.tinycorelinux.net/index.cgi?url=Core-scripts.git/tree/init
vs
https://github.com/unclejack/debian2docker/blob/migrate_from_live-build/buildboot/init

and before I did anything more, I thought I'd see what the other
codepath (switch_root like d2d has...) did - so I added `noembed` and
https://github.com/dotcloud/docker/issues/4095 stops happening.

I have had some weird issues with tcz pkg's not being installed, but that seems to have evened out since.