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/light/src/net/tests/mod.rs

@@ -150,7 +150,7 @@ impl Provider for TestProvider {
 
 	fn storage_proof(&self, req: request::CompleteStorageRequest) -> Option<request::StorageResponse> {
 		Some(StorageResponse {
-			proof: vec![::rlp::encode(&req.key_hash).into_vec()],
+			proof: vec![::rlp::encode(&req.key_hash)],
 			value: req.key_hash | req.address_hash,
 		})
 	}