flightmode.js: reimplement arming and disarming in terms of arm/disarm command_long
flightmode.js: reimplement arming and disarming in terms of arm/disarm command_long

wiseman/mavelous,jiusanzhou/mavelous,wiseman/mavelous,jiusanzhou/mavelous,wiseman/mavelous,jiusanzhou/mavelous,jiusanzhou/mavelous