dnet-openaire/virtuoso.yml: Use the dnet_user_services_perms to set up ACLs and sudo.
library/roles/ssh-keys/defaults/main.yml: All the keys have been moved to library/vars/isti-global.yml.
library/roles/dnet_user_services_perms: New roles to configure the VM permissions in a way that allows playing with tomcat without been root.
infrastructure-services: First bits of nagios configuration for the infrastructure services.