Allow root to force transfers (#3475)

* Allow root to force transfers

* Bump version

* Avoid changing pre-existing encodings

substrate/node/runtime/src/lib.rs

@@ -79,7 +79,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// and set impl_version to equal spec_version. If only runtime
 	// implementation changes and behavior does not, then leave spec_version as
 	// is and increment impl_version.
-	spec_version: 150,
+	spec_version: 151,
 	impl_version: 151,
 	apis: RUNTIME_API_VERSIONS,
 };