qt: Add cancel button to configuration options popup
qt: Add cancel button to configuration options popup

This adds a cancel buttion to the configuration options window

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