doc: Add historical release notes for 0.15.1
doc: Add historical release notes for 0.15.1

Tree-SHA512: 83d1b5c392ada61c846ece98e5060ead8b79989a024d241ade20b607af3651a832f59adc73d34771b4e9ec573315cb19ea20743d7d7d88dbbec0e60b2ca81729

vmp32k/litecoin,ElementsProject/elements,untrustbank/litecoin,fanquake/bitcoin,particl/particl-core,achow101/bitcoin,guncoin/guncoin,kallewoof/bitcoin,maaku/bitcoin,BTCGPU/BTCGPU,pataquets/namecoin-core,domob1812/namecore,laudaa/bitcoin,MeshCollider/bitcoin,tjps/bitcoin,n1bor/bitcoin,maaku/bitcoin,Flowdalic/bitcoin,jmcorgan/bitcoin,tjps/bitcoin,CryptArc/bitcoin,bespike/litecoin,digibyte/digibyte,andreaskern/bitcoin,Sjors/bitcoin,brandonrobertz/namecoin-core,mitchellcash/bitcoin,viacoin/viacoin,anditto/bitcoin,instagibbs/bitcoin,Kogser/bitcoin,lbryio/lbrycrd,guncoin/guncoin,ajtowns/bitcoin,namecoin/namecoin-core,rnicoll/dogecoin,jlopp/statoshi,prusnak/bitcoin,bitcoin/bitcoin,mb300sd/bitcoin,gjhiggins/vcoincore,pstratem/bitcoin,jnewbery/bitcoin,peercoin/peercoin,GroestlCoin/bitcoin,myriadteam/myriadcoin,GlobalBoost/GlobalBoost,instagibbs/bitcoin,1185/starwels,Rav3nPL/bitcoin,1185/starwels,myriadcoin/myriadcoin,1185/starwels,joshrabinowitz/bitcoin,bitcoinknots/bitcoin,JeremyRubin/bitcoin,sstone/bitcoin,AkioNak/bitcoin,sebrandon1/bitcoin,ericshawlinux/bitcoin,bitcoin/bitcoin,GlobalBoost/GlobalBoost,Rav3nPL/bitcoin,mb300sd/bitcoin,MeshCollider/bitcoin,lbryio/lbrycrd,practicalswift/bitcoin,apoelstra/bitcoin,brandonrobertz/namecoin-core,joshrabinowitz/bitcoin,fanquake/bitcoin,ajtowns/bitcoin,midnightmagic/bitcoin,Sjors/bitcoin,untrustbank/litecoin,rawodb/bitcoin,jamesob/bitcoin,GroestlCoin/bitcoin,bitcoinsSG/bitcoin,qtumproject/qtum,jamesob/bitcoin,cdecker/bitcoin,EthanHeilman/bitcoin,nikkitan/bitcoin,h4x3rotab/BTCGPU,jmcorgan/bitcoin,JeremyRubin/bitcoin,digibyte/digibyte,namecoin/namecore,n1bor/bitcoin,domob1812/namecore,starwels/starwels,vertcoin/vertcoin,myriadteam/myriadcoin,viacoin/viacoin,namecoin/namecoin-core,rnicoll/dogecoin,prusnak/bitcoin,TheBlueMatt/bitcoin,anditto/bitcoin,midnightmagic/bitcoin,EthanHeilman/bitcoin,jtimon/bitcoin,apoelstra/bitcoin,BTCGPU/BTCGPU,Bushstar/UFO-Project,qtumproject/qtum,EthanHeilman/bitcoin,jtimon/bitcoin,GlobalBoost/GlobalBoost,MazaCoin/maza,alecalve/bitcoin,bitcoinsSG/bitcoin,Xekyo/bitcoin,kallewoof/bitcoin,brandonrobertz/namecoin-core,vmp32k/litecoin,BTCGPU/BTCGPU,yenliangl/bitcoin,particl/particl-core,lateminer/bitcoin,gjhiggins/vcoincore,Kogser/bitcoin,jambolo/bitcoin,FeatherCoin/Feathercoin,nikkitan/bitcoin,afk11/bitcoin,MarcoFalke/bitcoin,Sjors/bitcoin,stamhe/bitcoin,maaku/bitcoin,donaloconnor/bitcoin,jonasschnelli/bitcoin,instagibbs/bitcoin,ajtowns/bitcoin,ppcoin/ppcoin,monacoinproject/monacoin,donaloconnor/bitcoin,domob1812/bitcoin,mruddy/bitcoin,domob1812/huntercore,JeremyRubin/bitcoin,thrasher-/litecoin,ericshawlinux/bitcoin,ahmedbodi/vertcoin,sipsorcery/bitcoin,CryptArc/bitcoin,andreaskern/bitcoin,jonasschnelli/bitcoin,yenliangl/bitcoin,n1bor/bitcoin,practicalswift/bitcoin,digibyte/digibyte,MazaCoin/maza,1185/starwels,achow101/bitcoin,globaltoken/globaltoken,namecoin/namecore,1185/starwels,gjhiggins/vcoincore,JeremyRubin/bitcoin,GroestlCoin/bitcoin,TheBlueMatt/bitcoin,Flowdalic/bitcoin,h4x3rotab/BTCGPU,peercoin/peercoin,tecnovert/particl-core,jonasschnelli/bitcoin,achow101/bitcoin,namecoin/namecoin-core,FeatherCoin/Feathercoin,jonasschnelli/bitcoin,prusnak/bitcoin,vertcoin/vertcoin,h4x3rotab/BTCGPU,achow101/bitcoin,paveljanik/bitcoin,RHavar/bitcoin,bitcoin/bitcoin,starwels/starwels,paveljanik/bitcoin,sebrandon1/bitcoin,DigitalPandacoin/pandacoin,andreaskern/bitcoin,maaku/bitcoin,Rav3nPL/bitcoin,GroestlCoin/GroestlCoin,ppcoin/ppcoin,ryanofsky/bitcoin,thrasher-/litecoin,globaltoken/globaltoken,digibyte/digibyte,myriadteam/myriadcoin,randy-waterhouse/bitcoin,prusnak/bitcoin,sebrandon1/bitcoin,nikkitan/bitcoin,sipsorcery/bitcoin,FeatherCoin/Feathercoin,jmcorgan/bitcoin,r8921039/bitcoin,untrustbank/litecoin,cdecker/bitcoin,MeshCollider/bitcoin,digibyte/digibyte,Christewart/bitcoin,sstone/bitcoin,apoelstra/bitcoin,ryanofsky/bitcoin,lbryio/lbrycrd,h4x3rotab/BTCGPU,GroestlCoin/bitcoin,kallewoof/bitcoin,practicalswift/bitcoin,jmcorgan/bitcoin,RHavar/bitcoin,bespike/litecoin,tecnovert/particl-core,maaku/bitcoin,afk11/bitcoin,pataquets/namecoin-core,lbryio/lbrycrd,Christewart/bitcoin,r8921039/bitcoin,litecoin-project/litecoin,rnicoll/bitcoin,rnicoll/bitcoin,cdecker/bitcoin,Bushstar/UFO-Project,fanquake/bitcoin,dscotese/bitcoin,GroestlCoin/GroestlCoin,myriadcoin/myriadcoin,BTCGPU/BTCGPU,RHavar/bitcoin,MeshCollider/bitcoin,wellenreiter01/Feathercoin,MarcoFalke/bitcoin,jlopp/statoshi,litecoin-project/litecoin,Christewart/bitcoin,Kogser/bitcoin,Kogser/bitcoin,myriadcoin/myriadcoin,deeponion/deeponion,brandonrobertz/namecoin-core,deeponion/deeponion,Flowdalic/bitcoin,laudaa/bitcoin,GlobalBoost/GlobalBoost,DigitalPandacoin/pandacoin,AkioNak/bitcoin,peercoin/peercoin,andreaskern/bitcoin,mm-s/bitcoin,sipsorcery/bitcoin,rnicoll/bitcoin,joshrabinowitz/bitcoin,thrasher-/litecoin,alecalve/bitcoin,yenliangl/bitcoin,nikkitan/bitcoin,sebrandon1/bitcoin,qtumproject/qtum,sstone/bitcoin,GroestlCoin/bitcoin,domob1812/namecore,pstratem/bitcoin,yenliangl/bitcoin,BTCGPU/BTCGPU,deeponion/deeponion,midnightmagic/bitcoin,Kogser/bitcoin,AkioNak/bitcoin,dscotese/bitcoin,jambolo/bitcoin,JeremyRubin/bitcoin,jamesob/bitcoin,midnightmagic/bitcoin,pstratem/bitcoin,globaltoken/globaltoken,randy-waterhouse/bitcoin,bitcoinsSG/bitcoin,guncoin/guncoin,laudaa/bitcoin,peercoin/peercoin,DigitalPandacoin/pandacoin,FeatherCoin/Feathercoin,bespike/litecoin,monacoinproject/monacoin,tjps/bitcoin,pataquets/namecoin-core,1185/starwels,domob1812/namecore,particl/particl-core,globaltoken/globaltoken,guncoin/guncoin,wellenreiter01/Feathercoin,OmniLayer/omnicore,jamesob/bitcoin,wellenreiter01/Feathercoin,MarcoFalke/bitcoin,achow101/bitcoin,jtimon/bitcoin,paveljanik/bitcoin,sstone/bitcoin,ppcoin/ppcoin,Kogser/bitcoin,droark/bitcoin,bitcoinknots/bitcoin,ericshawlinux/bitcoin,qtumproject/qtum,Kogser/bitcoin,jlopp/statoshi,OmniLayer/omnicore,mm-s/bitcoin,domob1812/huntercore,Rav3nPL/bitcoin,wellenreiter01/Feathercoin,Flowdalic/bitcoin,domob1812/huntercore,MeshCollider/bitcoin,laudaa/bitcoin,Kogser/bitcoin,MazaCoin/maza,dscotese/bitcoin,cdecker/bitcoin,gjhiggins/vcoincore,maaku/bitcoin,AkioNak/bitcoin,ElementsProject/elements,h4x3rotab/BTCGPU,laudaa/bitcoin,cdecker/bitcoin,fanquake/bitcoin,Rav3nPL/bitcoin,paveljanik/bitcoin,Sjors/bitcoin,pstratem/bitcoin,wellenreiter01/Feathercoin,ajtowns/bitcoin,domob1812/bitcoin,lbryio/lbrycrd,domob1812/namecore,droark/bitcoin,ElementsProject/elements,ryanofsky/bitcoin,ericshawlinux/bitcoin,ryanofsky/bitcoin,randy-waterhouse/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,myriadcoin/myriadcoin,pataquets/namecoin-core,Xekyo/bitcoin,sipsorcery/bitcoin,peercoin/peercoin,BTCGPU/BTCGPU,tecnovert/particl-core,CryptArc/bitcoin,viacoin/viacoin,andreaskern/bitcoin,jambolo/bitcoin,mb300sd/bitcoin,yenliangl/bitcoin,kallewoof/bitcoin,sipsorcery/bitcoin,guncoin/guncoin,afk11/bitcoin,thrasher-/litecoin,untrustbank/litecoin,Rav3nPL/bitcoin,mruddy/bitcoin,yenliangl/bitcoin,rawodb/bitcoin,domob1812/huntercore,bitcoinsSG/bitcoin,litecoin-project/litecoin,cdecker/bitcoin,namecoin/namecore,stamhe/bitcoin,gjhiggins/vcoincore,GlobalBoost/GlobalBoost,GroestlCoin/bitcoin,sebrandon1/bitcoin,mm-s/bitcoin,bitcoinknots/bitcoin,vertcoin/vertcoin,viacoin/viacoin,n1bor/bitcoin,brandonrobertz/namecoin-core,particl/particl-core,lbryio/lbrycrd,domob1812/bitcoin,MarcoFalke/bitcoin,jamesob/bitcoin,bitcoin/bitcoin,tjps/bitcoin,pataquets/namecoin-core,globaltoken/globaltoken,domob1812/huntercore,rawodb/bitcoin,globaltoken/globaltoken,wellenreiter01/Feathercoin,domob1812/bitcoin,ajtowns/bitcoin,bitcoinknots/bitcoin,practicalswift/bitcoin,kazcw/bitcoin,Xekyo/bitcoin,achow101/bitcoin,jnewbery/bitcoin,TheBlueMatt/bitcoin,randy-waterhouse/bitcoin,TheBlueMatt/bitcoin,EthanHeilman/bitcoin,dscotese/bitcoin,jambolo/bitcoin,dscotese/bitcoin,Xekyo/bitcoin,bitcoinsSG/bitcoin,FeatherCoin/Feathercoin,jnewbery/bitcoin,tjps/bitcoin,ahmedbodi/vertcoin,litecoin-project/litecoin,jtimon/bitcoin,tjps/bitcoin,kazcw/bitcoin,myriadteam/myriadcoin,Sjors/bitcoin,monacoinproject/monacoin,Bushstar/UFO-Project,anditto/bitcoin,anditto/bitcoin,apoelstra/bitcoin,myriadcoin/myriadcoin,Bushstar/UFO-Project,Christewart/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,OmniLayer/omnicore,domob1812/bitcoin,donaloconnor/bitcoin,starwels/starwels,fujicoin/fujicoin,vertcoin/vertcoin,donaloconnor/bitcoin,ajtowns/bitcoin,CryptArc/bitcoin,Bushstar/UFO-Project,sebrandon1/bitcoin,midnightmagic/bitcoin,nikkitan/bitcoin,monacoinproject/monacoin,rnicoll/dogecoin,JeremyRubin/bitcoin,ryanofsky/bitcoin,OmniLayer/omnicore,OmniLayer/omnicore,tecnovert/particl-core,jlopp/statoshi,RHavar/bitcoin,kazcw/bitcoin,apoelstra/bitcoin,kallewoof/bitcoin,Kogser/bitcoin,kallewoof/bitcoin,alecalve/bitcoin,fujicoin/fujicoin,alecalve/bitcoin,jlopp/statoshi,lateminer/bitcoin,MazaCoin/maza,mitchellcash/bitcoin,peercoin/peercoin,midnightmagic/bitcoin,DigitalPandacoin/pandacoin,digibyte/digibyte,Xekyo/bitcoin,tecnovert/particl-core,sipsorcery/bitcoin,namecoin/namecore,CryptArc/bitcoin,Flowdalic/bitcoin,viacoin/viacoin,rawodb/bitcoin,lbryio/lbrycrd,joshrabinowitz/bitcoin,thrasher-/litecoin,r8921039/bitcoin,afk11/bitcoin,vmp32k/litecoin,GlobalBoost/GlobalBoost,jtimon/bitcoin,namecoin/namecore,mruddy/bitcoin,r8921039/bitcoin,nikkitan/bitcoin,apoelstra/bitcoin,fanquake/bitcoin,bitcoin/bitcoin,stamhe/bitcoin,GroestlCoin/GroestlCoin,starwels/starwels,RHavar/bitcoin,vmp32k/litecoin,untrustbank/litecoin,droark/bitcoin,qtumproject/qtum,donaloconnor/bitcoin,starwels/starwels,prusnak/bitcoin,tecnovert/particl-core,stamhe/bitcoin,kazcw/bitcoin,h4x3rotab/BTCGPU,GroestlCoin/GroestlCoin,jambolo/bitcoin,EthanHeilman/bitcoin,stamhe/bitcoin,myriadteam/myriadcoin,qtumproject/qtum,domob1812/bitcoin,jmcorgan/bitcoin,mitchellcash/bitcoin,pataquets/namecoin-core,randy-waterhouse/bitcoin,joshrabinowitz/bitcoin,n1bor/bitcoin,jnewbery/bitcoin,monacoinproject/monacoin,pstratem/bitcoin,bitcoinknots/bitcoin,MarcoFalke/bitcoin,ElementsProject/elements,n1bor/bitcoin,Flowdalic/bitcoin,mruddy/bitcoin,mb300sd/bitcoin,Kogser/bitcoin,vmp32k/litecoin,ahmedbodi/vertcoin,fujicoin/fujicoin,GroestlCoin/GroestlCoin,namecoin/namecore,jonasschnelli/bitcoin,bitcoin/bitcoin,starwels/starwels,bespike/litecoin,thrasher-/litecoin,instagibbs/bitcoin,joshrabinowitz/bitcoin,instagibbs/bitcoin,donaloconnor/bitcoin,randy-waterhouse/bitcoin,untrustbank/litecoin,CryptArc/bitcoin,anditto/bitcoin,bitcoinsSG/bitcoin,fujicoin/fujicoin,droark/bitcoin,r8921039/bitcoin,ryanofsky/bitcoin,namecoin/namecoin-core,TheBlueMatt/bitcoin,fujicoin/fujicoin,qtumproject/qtum,DigitalPandacoin/pandacoin,lateminer/bitcoin,AkioNak/bitcoin,alecalve/bitcoin,fanquake/bitcoin,litecoin-project/litecoin,mm-s/bitcoin,vmp32k/litecoin,bespike/litecoin,monacoinproject/monacoin,jlopp/statoshi,Christewart/bitcoin,rawodb/bitcoin,Bushstar/UFO-Project,vertcoin/vertcoin,MazaCoin/maza,paveljanik/bitcoin,ericshawlinux/bitcoin,afk11/bitcoin,ericshawlinux/bitcoin,guncoin/guncoin,stamhe/bitcoin,jtimon/bitcoin,myriadteam/myriadcoin,ahmedbodi/vertcoin,kazcw/bitcoin,jmcorgan/bitcoin,MarcoFalke/bitcoin,ElementsProject/elements,namecoin/namecoin-core,paveljanik/bitcoin,myriadcoin/myriadcoin,MazaCoin/maza,particl/particl-core,domob1812/huntercore,mm-s/bitcoin,DigitalPandacoin/pandacoin,pstratem/bitcoin,ElementsProject/elements,dscotese/bitcoin,lateminer/bitcoin,MeshCollider/bitcoin,deeponion/deeponion,brandonrobertz/namecoin-core,afk11/bitcoin,droark/bitcoin,practicalswift/bitcoin,mitchellcash/bitcoin,andreaskern/bitcoin,rnicoll/bitcoin,mruddy/bitcoin,laudaa/bitcoin,ahmedbodi/vertcoin,deeponion/deeponion,rnicoll/bitcoin,mruddy/bitcoin,deeponion/deeponion,practicalswift/bitcoin,rnicoll/dogecoin,r8921039/bitcoin,mm-s/bitcoin,anditto/bitcoin,EthanHeilman/bitcoin,ahmedbodi/vertcoin,FeatherCoin/Feathercoin,domob1812/namecore,rnicoll/dogecoin,sstone/bitcoin,bespike/litecoin,Kogser/bitcoin,GlobalBoost/GlobalBoost,prusnak/bitcoin,ppcoin/ppcoin,OmniLayer/omnicore,viacoin/viacoin,kazcw/bitcoin,TheBlueMatt/bitcoin,sstone/bitcoin,Kogser/bitcoin,jnewbery/bitcoin,alecalve/bitcoin,droark/bitcoin,fujicoin/fujicoin,mitchellcash/bitcoin,mb300sd/bitcoin,jamesob/bitcoin,rawodb/bitcoin,Xekyo/bitcoin,Christewart/bitcoin,jambolo/bitcoin,RHavar/bitcoin,rnicoll/bitcoin,lateminer/bitcoin,mb300sd/bitcoin,particl/particl-core,gjhiggins/vcoincore,litecoin-project/litecoin,vertcoin/vertcoin,mitchellcash/bitcoin,instagibbs/bitcoin