doc: Remove -whitelistforcerelay from comment
doc: Remove -whitelistforcerelay from comment

Instead, permission flags should be used. For example
-whitelist=forcerelay@127.0.0.1

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