Increased block capacity to 5 seconds (#618)

runtime/src/constants.rs

@@ -131,10 +131,10 @@ pub mod system {
 	const MAXIMUM_BLOCK_WEIGHT: Weight =
 		Weight::from_parts(WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2), u64::MAX);
 
-	/// We allow for 2 (temporary) seconds of compute with a 20 second average block time, with maximum proof size.
+	/// We allow for 5 seconds of compute with a 20 second average block time, with maximum proof size.
 	#[cfg(not(feature = "fast-runtime"))]
 	const MAXIMUM_BLOCK_WEIGHT: Weight =
-		Weight::from_parts(WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2), u64::MAX);
+		Weight::from_parts(WEIGHT_REF_TIME_PER_SECOND.saturating_mul(5), u64::MAX);
 
 	parameter_types! {
 		pub RuntimeBlockWeights: SystemBlockWeights = SystemBlockWeights::builder()

runtime/src/version.rs

@@ -17,7 +17,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// Per convention: if the runtime behavior changes, increment spec_version
 	// and set impl_version to 0. This paramenter is typically incremented when
 	// there's an update to the transaction_version.
-	spec_version: 35,
+	spec_version: 36,
 	// The version of the implementation of the specification. Nodes can ignore this. It is only
 	// used to indicate that the code is different. As long as the authoring_version and the
 	// spec_version are the same, the code itself might have changed, but the native and Wasm