[Peter: propagate linux-pam dependencies/comment,
needs wordexp.h, not available on uClibc,
use /etc/default/nodm for config override,
correct github/site/source handling,
disable help2man]
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>