some listwordinterval_compress which merges adjacent intervals
some listwordinterval_compress which merges adjacent intervals

diekmann/Iptables_Semantics,diekmann/Iptables_Semantics,jcaesar/Iptables_Semantics,jcaesar/Iptables_Semantics,diekmann/Iptables_Semantics,jcaesar/Iptables_Semantics