* IrcConnection.cs: Fixed IrcConnection.Disconnect(), the read and   write thread might thought it needs to reconnect!
* IrcConnection.cs: Fixed IrcConnection.Disconnect(), the read and
  write thread might thought it needs to reconnect!

djkaty/SmartIrc4net,kabili207/SmartIrc4net,meebey/SmartIrc4net,gmt2001/SmartIrc4net,djkaty/SmartIrc4net,Thoorium/SmartIrc4net,txdv/smartirc4net,txdv/smartirc4net,RavuAlHemio/SmartIrc4net,meebey/SmartIrc4net,Thoorium/SmartIrc4net,Jaykul/SmartIrc4net,Jaykul/SmartIrc4net,RavuAlHemio/SmartIrc4net,gmt2001/SmartIrc4net,kabili207/SmartIrc4net