Update to latest Substrate master. (#353)

* Integrate srml/im-online

* Fix all build errors with old aura.

* Fix most of the build errors.

* Builds and tests seem to pass (I will not trust this commit yet)

* Apply suggestions from code review

Co-Authored-By: Robert Habermeier <rphmeier@gmail.com>

* Kill some warnings.

* fix panics on 0 validators

* Fix dev chain.

* Fix author stuff

* fix im online integration.

* Some tweaks

* Introduce app-crypto

* Initial build work

* codec update / tweaks

* patch polkadot-erasure-coding input

* More fixes for new crypto

* More fixes

* Update parachains module

* evamp parachain crypto

* More crypto work.

* Chain spec and service.

* ChainSpec stuff

* Last bits for a clean build

* Tweak coment

* adapt polkadot-validation to the new keystore

* polkadot-network compiles, but tests don't

* Integrate the new parachain validation stuff

* delete message_routing file

* make polkadot-network tests compile and pass

* runtime tests compile and pass

* update substrate ref

* service compiles

* all tests pass

* Add TODO, change branch back to polkadot-master

* Lock file

* TODOs done

* Issue number

* Remove old tODO

* Remove commented code

polkadot/cli/src/chain_spec.rs

@@ -26,15 +26,15 @@ pub enum ChainSpec {
 	Development,
 	/// Whatever the current runtime is, with simple Alice/Bob auths.
 	LocalTestnet,
-	/// The PoC-3 era testnet.
-	Alexander,
+	/// The Kusama network.
+	Kusama,
 	/// Whatever the current runtime is with the "global testnet" defaults.
 	StagingTestnet,
 }
 
 impl Default for ChainSpec {
 	fn default() -> Self {
-		ChainSpec::Alexander
+		ChainSpec::Kusama
 	}
 }
 
@@ -42,7 +42,7 @@ impl Default for ChainSpec {
 impl ChainSpec {
 	pub(crate) fn load(self) -> Result<service::ChainSpec, String> {
 		Ok(match self {
-			ChainSpec::Alexander => service::chain_spec::poc_3_testnet_config()?,
+			ChainSpec::Kusama => service::chain_spec::kusama_config()?,
 			ChainSpec::Development => service::chain_spec::development_config(),
 			ChainSpec::LocalTestnet => service::chain_spec::local_testnet_config(),
 			ChainSpec::StagingTestnet => service::chain_spec::staging_testnet_config(),
@@ -53,7 +53,7 @@ impl ChainSpec {
 		match s {
 			"dev" => Some(ChainSpec::Development),
 			"local" => Some(ChainSpec::LocalTestnet),
-			"poc-3" | "alex" | "alexander" => Some(ChainSpec::Alexander),
+			"kusama" => Some(ChainSpec::Kusama),
 			"staging" => Some(ChainSpec::StagingTestnet),
 			"" => Some(ChainSpec::default()),
 			_ => None,