add add argv(use to modify extra quota,fix mac address find in upChain
start as daemon
fix some bug
add history rate save to file 'hrate.db'
check limit.tab before daemon mode
fix bug
add daemon stat in status command
fix limit.tab decode bug
fix status encode bug
fix encode bug and add left quota to status print
monitor filter strongger
add -x argv to iptables -L to display bytes without suffix