update typedef for reducer

Author: davidmarne

lib/src/typedefs.dart

@@ -4,7 +4,7 @@ import 'action.dart';
 import 'middleware.dart';
 
 typedef void Reducer<P, V extends Built<V, B>, B extends Builder<V, B>>(
-    B builder, Action<P> action);
+    V state, Action<P> action, B builder);
 
 typedef ActionHandler(Action a);
 typedef ActionHandler NextActionHandler(ActionHandler next);

pubspec.yaml

@@ -1,5 +1,5 @@
 name: built_redux
-version: 0.0.4
+version: 0.0.5
 description:
   A state management library written in dart that enforces immutability
 authors: