add airsign to list of commands
add airsign to list of commands

matiu/bitcore-wallet,bitpay/bitcore,gabegattis/bitcore-wallet,bitpay/bitcore-wallet,martindale/bitcore,bitjson/bitcore,isocolsky/bitcore-wallet,bitpay/bitcore,martindale/bitcore,bitjson/bitcore,bitpay/bitcore,bitpay/bitcore,bitjson/bitcore,bankonme/bitcore-wallet,martindale/bitcore,eXcomm/bitcore-wallet,martindale/bitcore,studio666/bitcore-wallet,bitjson/bitcore