net: make it possible to connect to CJDNS addresses
net: make it possible to connect to CJDNS addresses

Connecting to CJDNS addresses works without a proxy, just like
connecting to an IPv6 address. Thus adapt `CService::GetSockAddr()` to
retrieve the `struct sockaddr*` even for `CService::IsCJDNS()` objects.

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