fix sending X.509 client certificates
fix sending X.509 client certificates

Without a selection callback no client certificate gets ever sent.

gmt2001/SmartIrc4net,Thoorium/SmartIrc4net,Jaykul/SmartIrc4net,Jaykul/SmartIrc4net,gmt2001/SmartIrc4net,meebey/SmartIrc4net,RavuAlHemio/SmartIrc4net,RavuAlHemio/SmartIrc4net,Thoorium/SmartIrc4net,meebey/SmartIrc4net