add dynamic language change support

add "en" ts

qad/sql_table/sql_table_widget.h

@@ -282,6 +282,7 @@ private:
 	
 	bool eventFilter(QObject * o, QEvent * e);
 	void timerEvent(QTimerEvent * );
+	void changeEvent(QEvent * e);
 	void stopTimer() {if (timer != 0) killTimer(timer); timer = 0;}
 	bool checkTable();
 	QStringList getTableColumns(const QString & t);