Moves Lib.File.Csv exmaple relative to the class directory
Moves example2.php under Util.Db.CsvDb where it belongs
Moves example3 to be under Lib.Db.Mysql.exampe where it belongs
Adds PHPGoodies::instantiate() method which simplifies application usage of PHPGoodies
Moves example4 to be under Util.Db.TreeManager where it belongs