Add option to break a chain if error occurs

Signed-off-by: John Napiorkowski <jjnapiork@cpan.org>
Add comment to the test

Signed-off-by: John Napiorkowski <jjnapiork@cpan.org>
Better configuration key name

Signed-off-by: John Napiorkowski <jjnapiork@cpan.org>
better docs for the detach on die feature