add coinbase lowfee sell restriction
add coinbase lowfee sell restriction

ajp8164/copay,cmgustavo/copay,matiu/copay,gabrielbazan7/copay,cobit-wallet/cobit,Bitcoin-com/Wallet,cmgustavo/copay,bitjson/copay,fr34k8/copay,bitjson/copay,fr34k8/copay,matiu/copay,bitjson/copay,gabrielbazan7/copay,Bitcoin-com/Wallet,msalcala11/copay,msalcala11/copay,fr34k8/copay,gabrielbazan7/copay,ajp8164/copay,fr34k8/copay,msalcala11/copay,bitchk-wallet/copay,bitjson/copay,janko33bd/copay,ajp8164/copay,matiu/copay,dabura667/copay,bitchk-wallet/copay,janko33bd/copay,Bitcoin-com/Wallet,matiu/copay,cmgustavo/copay,cmgustavo/copay,gabrielbazan7/copay,cobit-wallet/cobit,dabura667/copay,cobit-wallet/cobit,dabura667/copay,Bitcoin-com/Wallet,msalcala11/copay,janko33bd/copay,bitchk-wallet/copay