Notice of Filing of Rule Change, as Modified by Amendment No. 1 Thereto, (1) Amending Rule 13 To Establish New Order Types, (2) Amending Rule 115A To Delete Obsolete Text and To Clarify and Update the Description of The Allocation of Market and Limit Interest in Opening and Reopening Transactions, (3) Amending Rule 123C To Include Better-Priced G Orders in The Allocation of Orders in Closing Transactions, and (4) Making Other Technical and Conforming Changes