update RELEASE_NOTES: add multisig, shorten gui export keys
update RELEASE_NOTES: add multisig, shorten gui export keys

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