nipapd: Move nipap.conf.sample

As setuptols cannot install stuff in /etc, place the nipap.conf.sample
/usr/shaer/nipap and let the Debian packaging tools install it in
/etc/nipap.

nipap/debian/nipapd.install

@@ -1,6 +1,6 @@
 usr/bin/nipapd
 usr/bin/nipap-passwd
 usr/share/nipap
-etc/nipap/nipap.conf.dist
+usr/share/nipap/nipap.conf.dist etc/nipap
 usr/share/man/man8/nipapd.8
 usr/share/man/man1/nipap-passwd.1

nipap/setup.py

@@ -18,7 +18,7 @@ def get_data_files():
         sys.exit(1)
 
     files = [
-        ('/etc/nipap/', ['nipap.conf.dist']),
+        ('share/nipap/', ['nipap.conf.dist']),
         ('share/nipap/sql/', [
             'sql/upgrade-1-2.plsql',
             'sql/upgrade-2-3.plsql',