qt, refactor: simplify third-party tx url action through overload
qt, refactor: simplify third-party tx url action through overload

Simplify the creation, addition, and slot/signal connection of
a third part tx url context menu action by using an overloaded
addAction function.

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