rpc/rawtx: Use existing NodeContext
rpc/rawtx: Use existing NodeContext

Also pass in appropriate object to:
- TxToJSON

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