Changes

# entries with names like 'num*' are measured in items. i.e. <code>numproc</code> - number of processes, <code>numiptent</code> - number of iptables entries.

# other entries like <code>kmemsize</code>, <code>tcprcvbuf</code>, <code>tcpsndbuf</code> are measured in bytes

== Overriding default units ==