test: scale amounts in test_doublespend_tree down by factor 10
test: scale amounts in test_doublespend_tree down by factor 10

This is done in order to prepare the make_utxo helper to use MiniWallet,
which only supports creating transactions with single inputs, i.e. we
need to create amounts small enough to be funded by coinbase transactions
(50 BTC).

sipsorcery/bitcoin,MarcoFalke/bitcoin,instagibbs/bitcoin,bitcoinsSG/bitcoin,GroestlCoin/GroestlCoin,prusnak/bitcoin,namecoin/namecore,sipsorcery/bitcoin,sstone/bitcoin,anditto/bitcoin,dscotese/bitcoin,MarcoFalke/bitcoin,GroestlCoin/bitcoin,ajtowns/bitcoin,domob1812/namecore,GroestlCoin/GroestlCoin,domob1812/namecore,GroestlCoin/bitcoin,ajtowns/bitcoin,fanquake/bitcoin,anditto/bitcoin,anditto/bitcoin,particl/particl-core,sstone/bitcoin,bitcoinsSG/bitcoin,bitcoin/bitcoin,achow101/bitcoin,Xekyo/bitcoin,domob1812/bitcoin,Xekyo/bitcoin,jambolo/bitcoin,GroestlCoin/GroestlCoin,lateminer/bitcoin,dscotese/bitcoin,pataquets/namecoin-core,sipsorcery/bitcoin,jlopp/statoshi,sstone/bitcoin,jlopp/statoshi,sipsorcery/bitcoin,namecoin/namecoin-core,mruddy/bitcoin,mm-s/bitcoin,mm-s/bitcoin,bitcoinknots/bitcoin,instagibbs/bitcoin,jamesob/bitcoin,Xekyo/bitcoin,tecnovert/particl-core,fujicoin/fujicoin,tecnovert/particl-core,GroestlCoin/bitcoin,namecoin/namecoin-core,mruddy/bitcoin,jamesob/bitcoin,mm-s/bitcoin,tecnovert/particl-core,ajtowns/bitcoin,kallewoof/bitcoin,AkioNak/bitcoin,dscotese/bitcoin,namecoin/namecore,bitcoinsSG/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,domob1812/bitcoin,jlopp/statoshi,domob1812/bitcoin,jlopp/statoshi,mm-s/bitcoin,dscotese/bitcoin,pataquets/namecoin-core,mruddy/bitcoin,sipsorcery/bitcoin,GroestlCoin/bitcoin,prusnak/bitcoin,kallewoof/bitcoin,pataquets/namecoin-core,namecoin/namecore,domob1812/bitcoin,sipsorcery/bitcoin,instagibbs/bitcoin,fanquake/bitcoin,ajtowns/bitcoin,anditto/bitcoin,bitcoinsSG/bitcoin,bitcoin/bitcoin,AkioNak/bitcoin,Xekyo/bitcoin,AkioNak/bitcoin,bitcoin/bitcoin,jamesob/bitcoin,instagibbs/bitcoin,instagibbs/bitcoin,tecnovert/particl-core,domob1812/namecore,mruddy/bitcoin,fanquake/bitcoin,domob1812/namecore,jamesob/bitcoin,namecoin/namecoin-core,fujicoin/fujicoin,sstone/bitcoin,bitcoinknots/bitcoin,achow101/bitcoin,andreaskern/bitcoin,prusnak/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,namecoin/namecore,andreaskern/bitcoin,mruddy/bitcoin,kallewoof/bitcoin,bitcoin/bitcoin,Xekyo/bitcoin,GroestlCoin/GroestlCoin,fujicoin/fujicoin,namecoin/namecoin-core,andreaskern/bitcoin,fanquake/bitcoin,anditto/bitcoin,MarcoFalke/bitcoin,jamesob/bitcoin,mm-s/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,mm-s/bitcoin,domob1812/namecore,lateminer/bitcoin,jambolo/bitcoin,tecnovert/particl-core,GroestlCoin/GroestlCoin,MarcoFalke/bitcoin,fujicoin/fujicoin,kallewoof/bitcoin,fujicoin/fujicoin,namecoin/namecore,achow101/bitcoin,andreaskern/bitcoin,achow101/bitcoin,bitcoinknots/bitcoin,MarcoFalke/bitcoin,namecoin/namecoin-core,lateminer/bitcoin,namecoin/namecore,particl/particl-core,sstone/bitcoin,andreaskern/bitcoin,bitcoinknots/bitcoin,particl/particl-core,domob1812/bitcoin,fanquake/bitcoin,bitcoinsSG/bitcoin,kallewoof/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,mruddy/bitcoin,bitcoinknots/bitcoin,pataquets/namecoin-core,ajtowns/bitcoin,Xekyo/bitcoin,particl/particl-core,particl/particl-core,prusnak/bitcoin,jlopp/statoshi,sstone/bitcoin,instagibbs/bitcoin,MarcoFalke/bitcoin,bitcoin/bitcoin,andreaskern/bitcoin,pataquets/namecoin-core,pataquets/namecoin-core,jamesob/bitcoin,prusnak/bitcoin,dscotese/bitcoin,GroestlCoin/bitcoin,jambolo/bitcoin,fanquake/bitcoin,bitcoin/bitcoin,anditto/bitcoin,jlopp/statoshi,dscotese/bitcoin,kallewoof/bitcoin,AkioNak/bitcoin,tecnovert/particl-core,bitcoinsSG/bitcoin,GroestlCoin/bitcoin,domob1812/namecore,lateminer/bitcoin,particl/particl-core,domob1812/bitcoin,prusnak/bitcoin,GroestlCoin/GroestlCoin,jambolo/bitcoin,achow101/bitcoin,fujicoin/fujicoin,achow101/bitcoin