Make work with Substrate master (#36)

* Fix up wasm runtime build

* Fixes for runtime

* Fix.

* More fixes

* Runtime builds on native.

* Native and wasm both build without warnings.

* Fix runtime tests.

* Merge #20

* Final fix for native runtime.

* Compile polkadot wo consensus

* Reverted changes to polkadot-consensus

* reintroduce minimal subset of consensus

* reintroduce checked_block to runtime for std

* polkadot_consensus compiles without most of the code

* remove checked_block again and do more checks in parachains for runtime

* uncomment proposer

* remove offline tracker

* extract out parachain-attestation logic from proposal directly

* reintroduce transaction_pool

* write some custom aura verification logic for the block verifier

* use transaction pool in more generic way

* service compiles again

* polkadot-network and tests pass

* remove unused session_key function from router

* everything but CLI compiles due to service hell

* Fixes compilation of `polkadot_cli`

* everything compiles

* update adder wasm

polkadot/primitives/src/parachain.rs

@@ -20,6 +20,8 @@ use rstd::prelude::*;
 use rstd::cmp::Ordering;
 use super::Hash;
 
+use {AccountId};
+
 #[cfg(feature = "std")]
 use primitives::bytes;
 
@@ -110,7 +112,7 @@ impl CandidateReceipt {
 	pub fn check_signature(&self) -> Result<(), ()> {
 		use runtime_primitives::traits::Verify;
 
-		if self.signature.verify(&self.block_data_hash.0[..], &self.collator) {
+		if self.signature.verify(self.block_data_hash.as_ref(), &self.collator) {
 			Ok(())
 		} else {
 			Err(())
@@ -205,3 +207,27 @@ pub enum Statement {
 	/// Vote to advance round after inactive primary.
 	Available(Hash),
 }
+
+decl_runtime_apis! {
+	/// The API for querying the state of parachains on-chain.
+	pub trait ParachainHost {
+		/// Get the current validators.
+		fn validators() -> Vec<AccountId>;
+		/// Get the current duty roster.
+		fn duty_roster() -> DutyRoster;
+		/// Get the currently active parachains.
+		fn active_parachains() -> Vec<Id>;
+		/// Get the given parachain's head data blob.
+		fn parachain_head(id: Id) -> Option<Vec<u8>>;
+		/// Get the given parachain's head code blob.
+		fn parachain_code(id: Id) -> Option<Vec<u8>>;
+	}
+}
+
+/// Runtime ID module.
+pub mod id {
+	use sr_version::ApiId;
+
+	/// Parachain host runtime API id.
+	pub const PARACHAIN_HOST: ApiId = *b"parahost";
+}