Sync

- Added task server details to the 'diagnostics' command output.
- Added new configuration variables to the 'show' command.
- rc.taskd.server specifies host:port of the task server.
- rc.taskd.credentials specifies user credentials for the task server.
- rc.taskd.certificate specifies the task server certificate.
- rc.debug.tls shows TLS log information, for debugging.

src/commands/CmdDiagnostics.cpp

@@ -217,6 +217,10 @@ int CmdDiagnostics::execute (std::string& output)
       << context.config.get ("taskd.server")
       << "\n";
 
+  out << "       Cert: "
+      << context.config.get ("taskd.certificate")
+      << "\n";
+
   out << "    Locking: "
       << (context.config.getBoolean ("locking")
            ? STRING_CMD_DIAG_ENABLED