Renaming bad blocks as retracted

ethcore/src/client.rs

@@ -410,7 +410,7 @@ impl<V> Client<V> where V: Verifier {
 			if !good_blocks.is_empty() && block_queue.queue_info().is_empty() {
 				io.send(NetworkIoMessage::User(SyncMessage::NewChainBlocks {
 					good: good_blocks,
-					bad: bad_blocks,
+					retracted: bad_blocks,
 				})).unwrap();
 			}
 		}

ethcore/src/service.rs

@@ -30,7 +30,7 @@ pub enum SyncMessage {
 		/// Hashes of blocks imported to blockchain
 		good: Vec<H256>,
 		/// Hashes of blocks not imported to blockchain
-		bad: Vec<H256>,
+		retracted: Vec<H256>,
 	},
 	/// A block is ready
 	BlockVerified,