Upgrades to build 2.1.0.BUILD-SNAPSHOT and boot 2.1.x

Moves refresh scope proxy creation from BeanDefinitionRegistryPostProcessor to BeanPostProcessor

fixes gh-400

spring-cloud-context-integration-tests/src/test/java/org/springframework/cloud/autoconfigure/RefreshScopeIntegrationTests.java

@@ -49,6 +49,7 @@ import static org.junit.Assert.assertTrue;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = TestConfiguration.class)
+@SuppressWarnings("Duplicates")
 public class RefreshScopeIntegrationTests {
 
 	@Autowired