add ndns into ppa-packaging

This commit adds ndns into ppa-packaging
Hi Alex,
	Thank you for driving me today. Anyway, I would work during the holiday,  and plan to finish deployment on the testbed asap. Hope this is commit is the last preparation.

Xiaoke (Shock)



> On 26 Nov, 2014, at 4:21 pm, Alex Afanasyev <notifications@github.com> wrote:
> 
> In ndns/debian/ndns.postinst:
> 
> > @@ -0,0 +1,19 @@
> > +#!/bin/sh -e
> > +
> > +if [ "$1" != "configure" ]; then
> > +        exit 0
> > +fi
> > +
> > +APP=ndns
> > +
> > +# if [ ! -f /var/lib/ndn/$APP/.ndn/ndnsec-public-info.db ]; then
> why did you comment out these? they are important
> 
> —
> Reply to this email directly or view it on GitHub <https://github.com/named-data/ppa-packaging/pull/1/files#r20972555>.
>