Rename `db` log category to `walletdb` (like `coindb`)
Rename `db` log category to `walletdb` (like `coindb`)

Deprecate (but still accept) '-debug=db'.

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