Use different chain primitives in Millau (#517)

bridges/bin/rialto/runtime/src/lib.rs

@@ -365,7 +365,7 @@ impl pallet_timestamp::Trait for Runtime {
 }
 
 parameter_types! {
-	pub const ExistentialDeposit: u128 = 500;
+	pub const ExistentialDeposit: bp_rialto::Balance = 500;
 	// For weight estimation, we assume that the most locks on an individual account will be 50.
 	// This number may need to be adjusted in the future if this assumption no longer holds true.
 	pub const MaxLocks: u32 = 50;

bridges/bin/rialto/runtime/src/millau_messages.rs

@@ -110,12 +110,12 @@ impl MessageBridge for WithMillauMessageBridge {
 
 	fn bridged_weight_to_bridged_balance(weight: Weight) -> bp_millau::Balance {
 		// we're using the same weights in both chains now
-		<crate::Runtime as pallet_transaction_payment::Trait>::WeightToFee::calc(&weight)
+		<crate::Runtime as pallet_transaction_payment::Trait>::WeightToFee::calc(&weight) as _
 	}
 
 	fn this_balance_to_bridged_balance(this_balance: bp_rialto::Balance) -> bp_millau::Balance {
 		// 1:1 conversion that will probably change in the future
-		this_balance
+		this_balance as _
 	}
 }