* luci/libs:	added inline documentation and luci.ip.cidr.sub() to luci.ip; allow CIDR notation _and_ netmask argument in IPv4() and IPv6() constructors
* luci/libs:	added inline documentation and luci.ip.cidr.sub() to luci.ip; allow CIDR notation _and_ netmask argument in IPv4() and IPv6() constructors


8devices/luci,8devices/luci,deepak78/luci,deepak78/luci,deepak78/luci,deepak78/luci,deepak78/luci,deepak78/luci,deepak78/luci,8devices/luci,deepak78/luci,8devices/luci,8devices/luci,8devices/luci