Close thecarevoice/portal#20: Add two wireless interface on DraginoV2
Improve thecarevoice/portal#6: coova-chilli workable on open ssid but login not workable
Improve thecarevoice/portal#9: integrate the travis ci for continuous build for carrierwrt
Add the default root password and banner
Improve thecarevoice/portal#6: Add carevoice logo, support https and localusers auth