Consensus message buffering and more (#114)

* CLI options and keystore integration

* Replace multiqueue with future::mpsc

* BFT gossip

* Revert to app_dirs

* generate_from_seed commented

* Refactor event loop

* Start consensus by timer

* Message buffering

* Minor fixes

* Work around duty-roster issue.

* some more minor fixes

* fix compilation

* more consistent formatting

* make bft input stream never conclude

* Minor fixes

* add timestamp module to executive

* more cleanups and logging

* Fixed message propagation

polkadot/transaction-pool/src/lib.rs

@@ -63,10 +63,10 @@ impl PolkadotBlock {
 			return Err(unchecked);
 		}
 		match unchecked.extrinsics[0].extrinsic.function {
-			Call::Timestamp(TimestampCall::set(_)) => return Err(unchecked),
-			_ => {}
+			Call::Timestamp(TimestampCall::set(_)) => {},
+			_ => return Err(unchecked),
 		}
-		
+
 		// any further checks...
 		Ok(PolkadotBlock { block: unchecked, location: None })
 	}