V2.5.6 stable (#10961)

-  Fix cargo audit (#10921)
  - Add support for Energy Web Foundation's new chains (#10957)
  - Kaspersky AV whitelisting (#10919)
  - Avast whitelist script (#10900)
  - Docker images renaming (#10863)
  - Remove excessive warning (#10831)
  - Allow --nat extip:your.host.here.org (#10830)
  - When updating the client or when called from RPC, sleep should mean sleep (#10814)
  - added new ropsten-bootnode and removed old one (#10794)
  - ethkey no longer uses byteorder (#10786)
  - Do not drop the peer with None difficulty (#10772)
  - docs: Update Readme with TOC, Contributor Guideline. Update Cargo package descriptions (#10652)

rpc/src/lib.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity Ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Parity RPC.
+//! Parity Ethereum JSON-RPC Servers (WS, HTTP, IPC).
 
 #![warn(missing_docs, unused_extern_crates)]
 #![cfg_attr(feature = "cargo-clippy", warn(clippy::all, clippy::pedantic))]

rpc/src/v1/helpers/engine_signer.rs

@@ -37,10 +37,7 @@ impl ethcore::engines::EngineSigner for EngineSigner {
 	fn sign(&self, message: ethkey::Message) -> Result<ethkey::Signature, ethkey::Error> {
 		match self.accounts.sign(self.address, Some(self.password.clone()), message) {
 			Ok(ok) => Ok(ok),
-			Err(e) => {
-				warn!("Unable to sign consensus message: {:?}", e);
-				Err(ethkey::Error::InvalidSecret)
-			},
+			Err(e) => Err(ethkey::Error::InvalidSecret),
 		}
 	}