* debian/control: ldap-auth-client conflicts with libnss-ldap < 255-1ubuntu1
  and libpam-ldap < 184-1ubuntu1 
* debian/control: have ldap-auth-config Depends on ldap-auth-client and sed
  and Pre-Depends on auth-client-config
* debian/ldap-auth-config.install: install ldap.conf into /etc
* debian/ldap-auth-config.postrm: call db_purge when purging
* debian/ldap-auth-config.postinst: refactor to handle pre-existing
  configurations and comply with https://wiki.ubuntu.com/LDAPAuthentication
* debian/ldap-auth-config.templates: string fixes and added 'manual'
* debian/ldap-auth-config.config: support 'manual' template
* debian/ldap-auth-config.config: refactor 'override' logic since ldap.conf
  is now a proper conffile
* debian/ldap-auth-config.postinst: don't remove /etc/ldap.conf if dbrootlogin
  is false
* adjust ldap.conf so it is managed by debconf by default
* added po-debconf
* lintian fixes (all but NMU complaints)