doc: add historical 0.19.0 release notes
doc: add historical 0.19.0 release notes

gjhiggins/vcoincore,alecalve/bitcoin,tecnovert/particl-core,mruddy/bitcoin,GroestlCoin/bitcoin,jnewbery/bitcoin,cdecker/bitcoin,JeremyRubin/bitcoin,vertcoin/vertcoin,DigitalPandacoin/pandacoin,apoelstra/bitcoin,ajtowns/bitcoin,cdecker/bitcoin,instagibbs/bitcoin,pataquets/namecoin-core,kallewoof/bitcoin,mitchellcash/bitcoin,Xekyo/bitcoin,ElementsProject/elements,peercoin/peercoin,andreaskern/bitcoin,andreaskern/bitcoin,GroestlCoin/GroestlCoin,GroestlCoin/GroestlCoin,lateminer/bitcoin,bitcoinsSG/bitcoin,jnewbery/bitcoin,bitcoinsSG/bitcoin,cdecker/bitcoin,namecoin/namecore,kallewoof/bitcoin,ajtowns/bitcoin,mruddy/bitcoin,andreaskern/bitcoin,gjhiggins/vcoincore,kallewoof/bitcoin,jlopp/statoshi,cdecker/bitcoin,qtumproject/qtum,rnicoll/bitcoin,tjps/bitcoin,sipsorcery/bitcoin,tecnovert/particl-core,prusnak/bitcoin,domob1812/namecore,pataquets/namecoin-core,achow101/bitcoin,apoelstra/bitcoin,particl/particl-core,peercoin/peercoin,monacoinproject/monacoin,cdecker/bitcoin,bitcoin/bitcoin,midnightmagic/bitcoin,anditto/bitcoin,jonasschnelli/bitcoin,AkioNak/bitcoin,EthanHeilman/bitcoin,anditto/bitcoin,EthanHeilman/bitcoin,MeshCollider/bitcoin,ahmedbodi/vertcoin,namecoin/namecoin-core,mm-s/bitcoin,vertcoin/vertcoin,fanquake/bitcoin,bitcoin/bitcoin,JeremyRubin/bitcoin,prusnak/bitcoin,instagibbs/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,monacoinproject/monacoin,yenliangl/bitcoin,ahmedbodi/vertcoin,midnightmagic/bitcoin,ahmedbodi/vertcoin,ElementsProject/elements,alecalve/bitcoin,jamesob/bitcoin,apoelstra/bitcoin,jambolo/bitcoin,dscotese/bitcoin,gjhiggins/vcoincore,namecoin/namecore,kallewoof/bitcoin,lateminer/bitcoin,jlopp/statoshi,jambolo/bitcoin,domob1812/namecore,pstratem/bitcoin,EthanHeilman/bitcoin,pataquets/namecoin-core,monacoinproject/monacoin,jambolo/bitcoin,practicalswift/bitcoin,tjps/bitcoin,peercoin/peercoin,Xekyo/bitcoin,particl/particl-core,n1bor/bitcoin,tjps/bitcoin,jambolo/bitcoin,fanquake/bitcoin,sipsorcery/bitcoin,rnicoll/dogecoin,ahmedbodi/vertcoin,bitcoinsSG/bitcoin,GroestlCoin/bitcoin,dscotese/bitcoin,rnicoll/bitcoin,achow101/bitcoin,MeshCollider/bitcoin,Sjors/bitcoin,Sjors/bitcoin,DigitalPandacoin/pandacoin,domob1812/namecore,MarcoFalke/bitcoin,n1bor/bitcoin,AkioNak/bitcoin,MarcoFalke/bitcoin,sstone/bitcoin,pstratem/bitcoin,monacoinproject/monacoin,peercoin/peercoin,vertcoin/vertcoin,MarcoFalke/bitcoin,EthanHeilman/bitcoin,bitcoinknots/bitcoin,dscotese/bitcoin,bitcoinsSG/bitcoin,tjps/bitcoin,instagibbs/bitcoin,fujicoin/fujicoin,yenliangl/bitcoin,sstone/bitcoin,jonasschnelli/bitcoin,domob1812/namecore,andreaskern/bitcoin,fanquake/bitcoin,fujicoin/fujicoin,tjps/bitcoin,domob1812/bitcoin,DigitalPandacoin/pandacoin,jambolo/bitcoin,achow101/bitcoin,namecoin/namecoin-core,particl/particl-core,domob1812/bitcoin,apoelstra/bitcoin,ElementsProject/elements,qtumproject/qtum,sstone/bitcoin,GroestlCoin/bitcoin,mruddy/bitcoin,litecoin-project/litecoin,GroestlCoin/GroestlCoin,anditto/bitcoin,sipsorcery/bitcoin,namecoin/namecore,domob1812/bitcoin,mm-s/bitcoin,Xekyo/bitcoin,rnicoll/bitcoin,MeshCollider/bitcoin,jamesob/bitcoin,instagibbs/bitcoin,monacoinproject/monacoin,bitcoinsSG/bitcoin,jlopp/statoshi,tjps/bitcoin,jamesob/bitcoin,fujicoin/fujicoin,kallewoof/bitcoin,anditto/bitcoin,sstone/bitcoin,alecalve/bitcoin,rnicoll/bitcoin,lateminer/bitcoin,namecoin/namecoin-core,alecalve/bitcoin,rnicoll/dogecoin,dscotese/bitcoin,qtumproject/qtum,sstone/bitcoin,practicalswift/bitcoin,EthanHeilman/bitcoin,jlopp/statoshi,fujicoin/fujicoin,domob1812/bitcoin,rnicoll/dogecoin,mruddy/bitcoin,MarcoFalke/bitcoin,prusnak/bitcoin,pstratem/bitcoin,apoelstra/bitcoin,particl/particl-core,pstratem/bitcoin,GroestlCoin/bitcoin,pataquets/namecoin-core,litecoin-project/litecoin,alecalve/bitcoin,pataquets/namecoin-core,vertcoin/vertcoin,prusnak/bitcoin,DigitalPandacoin/pandacoin,gjhiggins/vcoincore,bitcoin/bitcoin,MarcoFalke/bitcoin,litecoin-project/litecoin,mitchellcash/bitcoin,bitcoin/bitcoin,qtumproject/qtum,ElementsProject/elements,cdecker/bitcoin,tecnovert/particl-core,instagibbs/bitcoin,Sjors/bitcoin,jonasschnelli/bitcoin,mitchellcash/bitcoin,mitchellcash/bitcoin,practicalswift/bitcoin,rnicoll/dogecoin,jlopp/statoshi,fanquake/bitcoin,JeremyRubin/bitcoin,pstratem/bitcoin,domob1812/bitcoin,yenliangl/bitcoin,gjhiggins/vcoincore,JeremyRubin/bitcoin,midnightmagic/bitcoin,jamesob/bitcoin,rnicoll/bitcoin,jambolo/bitcoin,Xekyo/bitcoin,rnicoll/dogecoin,fujicoin/fujicoin,DigitalPandacoin/pandacoin,ajtowns/bitcoin,mruddy/bitcoin,pstratem/bitcoin,DigitalPandacoin/pandacoin,jlopp/statoshi,fanquake/bitcoin,prusnak/bitcoin,bitcoinsSG/bitcoin,jamesob/bitcoin,GroestlCoin/bitcoin,vertcoin/vertcoin,sipsorcery/bitcoin,qtumproject/qtum,mm-s/bitcoin,jnewbery/bitcoin,monacoinproject/monacoin,fanquake/bitcoin,AkioNak/bitcoin,gjhiggins/vcoincore,EthanHeilman/bitcoin,mm-s/bitcoin,n1bor/bitcoin,domob1812/namecore,Xekyo/bitcoin,ahmedbodi/vertcoin,kallewoof/bitcoin,n1bor/bitcoin,GroestlCoin/GroestlCoin,achow101/bitcoin,AkioNak/bitcoin,bitcoinknots/bitcoin,domob1812/namecore,bitcoin/bitcoin,litecoin-project/litecoin,namecoin/namecoin-core,Xekyo/bitcoin,ahmedbodi/vertcoin,JeremyRubin/bitcoin,midnightmagic/bitcoin,JeremyRubin/bitcoin,jnewbery/bitcoin,midnightmagic/bitcoin,sipsorcery/bitcoin,apoelstra/bitcoin,rnicoll/bitcoin,prusnak/bitcoin,lateminer/bitcoin,andreaskern/bitcoin,namecoin/namecore,anditto/bitcoin,ElementsProject/elements,domob1812/bitcoin,bitcoinknots/bitcoin,peercoin/peercoin,ElementsProject/elements,mruddy/bitcoin,practicalswift/bitcoin,particl/particl-core,yenliangl/bitcoin,ajtowns/bitcoin,midnightmagic/bitcoin,dscotese/bitcoin,vertcoin/vertcoin,Sjors/bitcoin,MeshCollider/bitcoin,practicalswift/bitcoin,GroestlCoin/bitcoin,AkioNak/bitcoin,n1bor/bitcoin,Sjors/bitcoin,jonasschnelli/bitcoin,litecoin-project/litecoin,ajtowns/bitcoin,yenliangl/bitcoin,yenliangl/bitcoin,tecnovert/particl-core,instagibbs/bitcoin,achow101/bitcoin,jnewbery/bitcoin,namecoin/namecoin-core,peercoin/peercoin,namecoin/namecore,jonasschnelli/bitcoin,GroestlCoin/GroestlCoin,pataquets/namecoin-core,AkioNak/bitcoin,achow101/bitcoin,jamesob/bitcoin,MeshCollider/bitcoin,tecnovert/particl-core,namecoin/namecoin-core,andreaskern/bitcoin,lateminer/bitcoin,ajtowns/bitcoin,tecnovert/particl-core,alecalve/bitcoin,lateminer/bitcoin,mitchellcash/bitcoin,n1bor/bitcoin,bitcoin/bitcoin,particl/particl-core,practicalswift/bitcoin,GroestlCoin/GroestlCoin,sstone/bitcoin,qtumproject/qtum,bitcoinknots/bitcoin,litecoin-project/litecoin,anditto/bitcoin,namecoin/namecore,MarcoFalke/bitcoin,qtumproject/qtum,mitchellcash/bitcoin,dscotese/bitcoin,mm-s/bitcoin,mm-s/bitcoin,MeshCollider/bitcoin,bitcoinknots/bitcoin