library/roles/iptables/templates/iptables-rules.v6.j2: Fix the reject options
library/roles/tomcat: Install a catalina.properties that matches the one used by the multiple instances role
library/roles/tomcat/templates/tomcat-server.xml.j2: Do not generate a random password when the shutdown port is disabled
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.