Update a few parity-common dependencies (#9663)

* Update a few parity-common dependencies

* cleanup

* cleanup

* revert update of ethereum/tests

* better reporting of network rlp errors

* Use rlp 0.3.0-beta.1

* fix util function get_dummy_blocks

* Already a Vec

* encode_list returns vec already

* Address grumble

* No need for betas

* Fix double spaces

ethcore/sync/src/block_sync.rs

@@ -795,7 +795,7 @@ mod tests {
 		for i in 0..4 {
 			// Construct the block body
 			let mut uncles = if i > 0 {
-				encode_list(&[dummy_header(i - 1, H256::random())]).into_vec()
+				encode_list(&[dummy_header(i - 1, H256::random())])
 			} else {
 				::rlp::EMPTY_LIST_RLP.to_vec()
 			};