[WIP] txpool (tx validation) using block sums for full validation (#1567)

tx validation (txpool) rework/simplify

api/src/handlers.rs

@@ -148,8 +148,7 @@ impl OutputHandler {
 			.filter(|output| commitments.is_empty() || commitments.contains(&output.commit))
 			.map(|output| {
 				OutputPrintable::from_output(output, w(&self.chain), Some(&header), include_proof)
-			})
-			.collect();
+			}).collect();
 
 		Ok(BlockOutputs {
 			header: BlockHeaderInfo::from_header(&header),
@@ -737,12 +736,10 @@ impl PoolPushHandler {
 				.and_then(move |wrapper: TxWrapper| {
 					util::from_hex(wrapper.tx_hex)
 						.map_err(|e| ErrorKind::RequestError(format!("Bad request: {}", e)).into())
-				})
-				.and_then(move |tx_bin| {
+				}).and_then(move |tx_bin| {
 					ser::deserialize(&mut &tx_bin[..])
 						.map_err(|e| ErrorKind::RequestError(format!("Bad request: {}", e)).into())
-				})
-				.and_then(move |tx: Transaction| {
+				}).and_then(move |tx: Transaction| {
 					let source = pool::TxSource {
 						debug_name: "push-api".to_string(),
 						identifier: "?.?.?.?".to_string(),
@@ -760,7 +757,7 @@ impl PoolPushHandler {
 					let mut tx_pool = pool_arc.write().unwrap();
 					let header = tx_pool.blockchain.chain_head().unwrap();
 					tx_pool
-						.add_to_pool(source, tx, !fluff, &header.hash())
+						.add_to_pool(source, tx, !fluff, &header)
 						.map_err(|e| {
 							error!(LOGGER, "update_pool: failed with error: {:?}", e);
 							ErrorKind::Internal(format!("Failed to update pool: {:?}", e)).into()