public function startStage( $step ) {
// Messages: config-install-database, config-install-tables, config-install-interwiki,
// config-install-stats, config-install-keys, config-install-sysop, config-install-mainpage
public function startStage( $step ) {
// Messages: config-install-database, config-install-tables, config-install-interwiki,
// config-install-stats, config-install-keys, config-install-sysop, config-install-mainpage