Debian build updates.

G'day, 

Just started looking at this with the objective of extending it to be capable enough to serve passwd/group/etc for libnss-ldap. This is just a few little tweaks to make it build deb's cleanly for the latest debhelper v9.

Any thoughts/advice/warnings on my longer term project would be appreciated. I have a few random/messy thoughts here;

http://minkirri.apana.org.au/wiki/LightLdapd