Modify to use BeanDefinitionRegistryPostProcessor

Also set guice binding source to "spring-guice" to avoid duplicate beans

Fixes gh-5

src/test/java/org/springframework/guice/SimpleWiringTests.java

@@ -37,7 +37,7 @@ public class SimpleWiringTests {
 		assertNotNull(app.getInstance(Foo.class));
 	}
 
-	protected static class TestConfig extends AbstractModule {
+	public static class TestConfig extends AbstractModule {
 		@Override
 		protected void configure() {
 			bind(Service.class).to(MyService.class);
@@ -47,10 +47,10 @@ public class SimpleWiringTests {
 	interface Service {	
 	}
 	
-	protected static class MyService implements Service {
+	public static class MyService implements Service {
 	}
 
-	protected static class Foo {
+	public static class Foo {
 		
 		@Inject
 		public Foo(Service service) {

src/test/java/org/springframework/guice/annotation/ModuleBeanWiringTests.java

@@ -16,6 +16,7 @@ package org.springframework.guice.annotation;
 import static org.junit.Assert.assertNotNull;
 
 import org.junit.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -49,6 +50,9 @@ public class ModuleBeanWiringTests extends AbstractCompleteWiringTests {
 	@EnableGuiceModules
 	@Configuration
 	public static class TestConfig extends AbstractModule {
+		
+		@Autowired Service service;
+		
 		@Override
 		protected void configure() {
 			bind(Service.class).to(MyService.class);