v1.1.0

• Exposes net.Listener on Server.Listener (previously private)
• Adds ListenTLS and ListenTLSCustom functions for starting servers with TLS
• Adds ConnectTLS and Sock.ConnectTLS functions for connecting with TLS
• Adds Sock.ConnectReader function for connecting over any io.ReadWriteCloser
• Adds Server.EnableUnixSocketGC convenience helper function
• Adds TLSCertPool and TLSAddRootCerts functions for customizing default TLS config
• Semantic change to UNIX socket transport: gotalk no longer installs a signal handler
  when listening over a UNIX socket using the function Listen("unix", ...).
  If you want to retain that functionality, explicitly call Server.EnableUnixSocketGC
  on the server returned by Listen("unix", ...).