Added IPv6, ESSID check, Silent mode, Wired switch

[ExploWare]

IPv6 support (ifconfig returns inet6 addr) ESSID check, on static configuration, inet(6) addr will be set even when not connected to AP Silent mode, prevent crontab log to grow huge in no-time (reduces writing for sdcards as well) Wired switch, to make only one network connection available at a time