Updated such that role scripts all live in one directory, regardless of
the distribution to which they are meant to be applied.
This role directory can be specified with "--roledir", or via the configuration file setting "roledir=/path/to/dir".
See the following bug for rationale:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=383822
1. Copy "resolv.conf" before running apt-get update / yum update.
Without this DNS is probably not available/working.
2. Copy /etc/sudoers from the host, if we're installing sudo.
Simplified 60-copy-host-files to only copy file(s) from the host
and install SSH (not gentoo yet).
This way we can move the /etc/passwd handling to a new file.
Added support for ubuntu, so far only the --dist=dapper works, but the
sources list is setup correctly and everything else is setup as well
as Debian is.
