update HF-meta for Metropolis to Byzantium

EIPS/eip-draft_hfmeta_metropolis.md

@@ -1,27 +1,25 @@
 ## Preamble
 
-    EIP: <to be assigned>
-    Title: Hardfork Meta: Metropolis
+    EIP: 609
+    Title: Hardfork Meta: Byzantium
     Author: Alex Beregszaszi
     Type: Standard Track
     Category: Core
     Status: Draft
-    Created: 23/04/2017
-    Requires: 86, 96, 98, 100, 140, 196, 197, 198, 211, 214
+    Created: 2017-04-23
+    Requires: 100, 140, 196, 197, 198, 211, 214
 
 ## Abstract
 
-This specifies the changes included in the hard fork named Metropolis.
+This specifies the changes included in the hard fork named Byzantium.
 
 ## Specification
 
-- Codename: Metropolis
+- Codename: Byzantium
+- Aliases: Metropolis/Byzantium, Metropolis part 1
 - Activation:
   - Block not specified yet
 - Included EIPs:
-  - EIP 86 (Abstraction of transaction origin and signature)
-  - EIP 96 (Blockhash refactoring)
-  - EIP 98 (Removal of intermediate state roots from receipts)
   - EIP 100 (Change difficulty adjustment to target mean block time including uncles)
   - EIP 140 (REVERT instruction in the Ethereum Virtual Machine)
   - EIP 196 (Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128)
@@ -29,6 +27,7 @@ This specifies the changes included in the hard fork named Metropolis.
   - EIP 198 (Precompiled contract for bigint modular exponentiation)
   - EIP 211 (New opcodes: RETURNDATASIZE and RETURNDATACOPY)
   - EIP 214 (New opcode STATICCALL)
+  - EIP 658 (Embedding transaction return data in receipts)
 
 ## Copyright