Bugfix: Close sockets on BitcoinNode at shutdown/restart too
Bugfix: Close sockets on BitcoinNode at shutdown/restart too

ahmedbodi/SHA-Eloipool-MMCFE-,imsaguy/eloipool,wizkid057/eloipool,thrasher-/eloipool,svasva/eloipool,jameshilliard/4tar-eloipool,thrasher-/eloipool,pointgaming/point-gaming-btc,cinnamoncoin/eloipool-1,uingei/eloi,uingei/eloipool,thrasher-/eloipool