2.9.81 * DataModel: describe_column(): Use refreturn to avoid a reference-counting problem. * Connection: Added execute_select_command() and execute_non_select_command() that take the command as a string and that take a parameter list, for convenience. * ParameterList: Remove add_param_*() methods, because we already have add_parameter() methods that wrap the same C functions. Ref the return, to avoid a crash. None of these could have worked before. * ConnectionEvent: Put the enums inside the Gnome::Gda namespace instead of inside Gnome::. * Value: Added get_ulong() and set_ulong() and a constructor. (Murray Cumming) * Build: Fix build when exceptions are disabled in glibmm. (Armin Burgmeier) * Documentation: Added simple_iter example to show the use of ITER_MODEL_ONLY models. (Murray Cumming)