add default i3status.conf
move i3status to correct location
i3status: correct dhcpcd pid location
i3status: remove vpn pid
i3status: correct ethernet interface name
i3status: use integers for battery capacity
i3status: use last full battery capacity
i3status: raise cpu load to 5 mins
i3status: add volume
i3status: remove ipv6
i3status: remove disk
add i3status to README