Collator for the "adder" (formerly basic-add) parachain and various small fixes (#438)

* update basic_add wasm

* wasm feature and collator feature

* move test parachains around a little

* fix wasm build for basic_add

* move basic_add to adder, introduce README

* minimal basic_add collator

* ensure collator messages are sent in the right order

* more logging

* route consensus statements to all peers

* minor bugfixes for parachains

* genesis builder accounts for parachain heads

* fix parachains tests

* targets for txpool

* tweak runtime + collator

* fix version in adder-collator

* consistency for overflowing

* adjust comment

* fix stable test run

* remove dummy registration test

* final grumbles

substrate/substrate/network/src/consensus_gossip.rs

@@ -124,7 +124,9 @@ impl<B: BlockT> ConsensusGossip<B> where B::Header: HeaderT<Number=u64> {
 
 	/// Handles incoming chain-specific message and repropagates
 	pub fn on_chain_specific(&mut self, protocol: &mut Context<B>, who: NodeIndex, message: Vec<u8>, parent_hash: B::Hash) {
+		debug!(target: "gossip", "received chain-specific gossip message");
 		if let Some((hash, message)) = self.handle_incoming(protocol, who, ConsensusMessage::ChainSpecific(message, parent_hash)) {
+			debug!(target: "gossip", "handled incoming chain-specific message");
 			// propagate to other peers.
 			self.multicast(protocol, message, Some(hash));
 		}
@@ -245,6 +247,7 @@ impl<B: BlockT> ConsensusGossip<B> where B::Header: HeaderT<Number=u64> {
 			peer.known_messages.insert(hash);
 			if let Some((sink, parent_hash)) = self.message_sink.take() {
 				if parent == parent_hash {
+					debug!(target: "gossip", "Pushing relevant consensus message to sink.");
 					if let Err(e) = sink.unbounded_send(message.clone()) {
 						trace!(target:"gossip", "Error broadcasting message notification: {:?}", e);
 					}

substrate/substrate/test-runtime/wasm/Cargo.lock

@@ -678,7 +678,7 @@ dependencies = [
  "substrate-runtime-std 0.1.0",
  "twox-hash 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "uint 0.1.2 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)",
- "wasmi 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasmi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -910,7 +910,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "wasmi"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1034,7 +1034,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f392d7819dbe58833e26872f5f6f0d68b7bbbe90fc3667e98731c4a15ad9a7ae"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum wasmi 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9b4a6d379e9332b1b1f52c5a87f2481c85c7c931d8ec411963dfb8f26b1ec1e3"
+"checksum wasmi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "522fe3fdd44a56f25cd5ddcd8ccdb1cf2e982ceb28fcb00f41d8a018ae5245a8"
 "checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"