trustedcoin plugin: fix is_billing
trustedcoin plugin: fix is_billing

FairCoinTeam/electrum-fair,argentumproject/electrum-arg,pooler/electrum-ltc,vialectrum/vialectrum,pooler/electrum-ltc,cryptapus/electrum,spesmilo/electrum,digitalbitbox/electrum,dabura667/electrum,molecular/electrum,vialectrum/vialectrum,kyuupichan/electrum,procrasti/electrum,procrasti/electrum,pooler/electrum-ltc,procrasti/electrum,cryptapus/electrum-uno,cryptapus/electrum-myr,wakiyamap/electrum-mona,digitalbitbox/electrum,dashpay/electrum-dash,pooler/electrum-ltc,vialectrum/vialectrum,asfin/electrum,cryptapus/electrum-myr,dashpay/electrum-dash,romanz/electrum,imrehg/electrum,FairCoinTeam/electrum-fair,molecular/electrum,lbryio/lbryum,FairCoinTeam/electrum-fair,cryptapus/electrum,asfin/electrum,fireduck64/electrum,digitalbitbox/electrum,pknight007/electrum-vtc,aasiutin/electrum,spesmilo/electrum,fyookball/electrum,protonn/Electrum-Cash,fireduck64/electrum,spesmilo/electrum,dashpay/electrum-dash,dabura667/electrum,imrehg/electrum,imrehg/electrum,cryptapus/electrum-myr,pknight007/electrum-vtc,argentumproject/electrum-arg,wakiyamap/electrum-mona,argentumproject/electrum-arg,vertcoin/electrum-vtc,cryptapus/electrum-uno,dabura667/electrum,aasiutin/electrum,argentumproject/electrum-arg,protonn/Electrum-Cash,cryptapus/electrum-myr,FairCoinTeam/electrum-fair,cryptapus/electrum-uno,fyookball/electrum,vertcoin/electrum-vtc,romanz/electrum,fyookball/electrum,aasiutin/electrum,neocogent/electrum,protonn/Electrum-Cash,aasiutin/electrum,vertcoin/electrum-vtc,asfin/electrum,procrasti/electrum,kyuupichan/electrum,neocogent/electrum,pknight007/electrum-vtc,lbryio/lbryum,cryptapus/electrum,fireduck64/electrum,fujicoin/electrum-fjc,neocogent/electrum,pknight007/electrum-vtc,cryptapus/electrum-uno,wakiyamap/electrum-mona,protonn/Electrum-Cash,fireduck64/electrum,fujicoin/electrum-fjc,romanz/electrum,vertcoin/electrum-vtc,wakiyamap/electrum-mona,molecular/electrum,fujicoin/electrum-fjc,spesmilo/electrum,kyuupichan/electrum,dabura667/electrum,molecular/electrum,digitalbitbox/electrum,imrehg/electrum,dashpay/electrum-dash