Fixed copying of tables from btranslator to btranslator_data.

This query does not copy indexes of the tables (which is very bad):
    CREATE TABLE $db_name.$table SELECT * FROM btranslator.$table

However this way indexes are copied as well:
    CREATE TABLE $db_name.$table LIKE btranslator.$table;
    INSERT INTO $db_name.$table SELECT * FROM btranslator.$table;