Create AuthoritiesChange digest item in correct block (#2512)

* finalize srml modules in reverse order

* update runtime versions

substrate/node/runtime/src/lib.rs

@@ -58,8 +58,8 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	spec_name: create_runtime_str!("node"),
 	impl_name: create_runtime_str!("substrate-node"),
 	authoring_version: 10,
-	spec_version: 75,
-	impl_version: 75,
+	spec_version: 76,
+	impl_version: 76,
 	apis: RUNTIME_API_VERSIONS,
 };