move core75 files to oldcore.

config/rootfiles/oldcore/75/exclude

@@ -0,0 +1,17 @@
+srv/web/ipfire/html/proxy.pac
+boot/config.txt
+etc/udev/rules.d/30-persistent-network.rules
+etc/collectd.custom
+etc/shadow
+etc/ipsec.conf
+etc/ipsec.secrets
+etc/ipsec.user.conf
+etc/ipsec.user.secrets
+var/log/cache
+var/updatecache
+etc/localtime
+var/ipfire/ovpn
+etc/ssh/ssh_config
+etc/ssh/sshd_config
+etc/ssl/openssl.cnf
+var/state/dhcp/dhcpd.leases