Deploy the sudoers file for nagios user.

Enable nagios user to execute check_apt command.
This commit refs/fixes #145
Merge branch 'id/145' into dev
Restart nagios service, when checking out the nagios configuration.

This commit refs/fixes #146
Merge branch 'id/146' into dev
Assign the base role to www6308ui, instead of assigning recipies.
Add sansakizaka-demo node json.
Merge branch 'nodes' into dev
Import iptables version 0.12.0
Merge branch 'chef-vendor-iptables' into dev
Delete the current iptables settings.

This commit refs #147
Add dependency on the iptables cookbook.

This commit refs #147.
Add iptables definitions, using iptables cookbook.

This commit refs #147.
Enable port 80 communication, when installing nginx.

This commit fixes #147.
Merge branch 'id/147' into dev