[redux-form] Allow the "reduxForm()" function to wrap stateless functional

components and not just class components.

redux-form/lib/reduxForm.d.ts

@@ -1,5 +1,6 @@
 import {
     Component,
+    StatelessComponent,
     ReactElement,
     SyntheticEvent,
     ReactEventHandler,
@@ -20,7 +21,8 @@ export function reduxForm(
 ): FormDecorator<any, any, any>;
 
 export interface FormDecorator<FormData extends DataShape, P, S> {
-    <T extends (typeof Component)>(component: T): T & Form<FormData, P, S>;
+    <T extends (typeof Component | StatelessComponent<any>)>(component: T): 
+        T & Form<FormData, P, S>;
 }
 
 export interface Config<FormData extends DataShape, P, S> {

redux-form/redux-form-tests.tsx

@@ -50,3 +50,9 @@ class MyForm extends Component<{}, {}> {
         );
     }
 }
+
+const MyStatelessFunctionalComponent: React.SFC<void> = () => <div/>;
+
+reduxForm({
+    form: 'mySFCForm'
+})(MyStatelessFunctionalComponent);