FEAT #3237 abstract class

entities/trunk/class/Entity.php

entities/trunk/class/EntityControler.php

entities/trunk/class/EntityControler_Abstract.php

entities/trunk/class/Entity_Abstract.php

entities/trunk/class/class_get_barcode.php

entities/trunk/class/class_get_barcode_Abstract.php

entities/trunk/class/class_manage_entities.php

entities/trunk/class/class_manage_entities_Abstract.php

entities/trunk/class/class_manage_listdiff.php

entities/trunk/class/class_manage_listdiff_Abstract.php

entities/trunk/class/class_modules_tools.php

entities/trunk/class/class_modules_tools_Abstract.php

entities/trunk/class/class_users_entities.php

entities/trunk/class/class_users_entities_Abstract.php