message: Connect the mapper for reserve balance in the options dialog.
diff: @@ -179,6 +179,7 @@ void OptionsDialog::setMapper()
  mapper->addMapping(ui->bitcoinAtStartup, OptionsModel::StartAtStartup);
  mapper->addMapping(ui->threadsScriptVerif, OptionsModel::ThreadsScriptVerif);
  mapper->addMapping(ui->databaseCache, OptionsModel::DatabaseCache);
  + mapper->addMapping(ui->reserveBalance, OptionsModel::ReserveBalance);
  /* Wallet */
  mapper->addMapping(ui->spendZeroConfChange, OptionsModel::SpendZeroConfChange);
  