Network configuration updates

- changed DHCP network interface from default (eth0) to br0 (bridge)
- moved old gridFTP VM to the new one
- added FNQN for vm-37-01
removing old gridFTP VM
adding rules for LCG squid
added gridFTP-hdfs-01
adding eduroam access for web-services
fix for iptables
adding eduroam/VPN access for ssh
adding new nodes
Merge pull request #67 from uobdic/dev

merging dev