DATAJDBC-622 - Polishing.

Rolled back changes to tests.
Added @author and @since tags.

Original pull request: #245.

spring-data-jdbc/src/test/java/org/springframework/data/jdbc/repository/config/EnableJdbcRepositoriesIntegrationTests.java

@@ -134,7 +134,6 @@ public class EnableJdbcRepositoriesIntegrationTests {
 	@EnableJdbcRepositories(considerNestedRepositories = true,
 			includeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = DummyRepository.class),
 			jdbcOperationsRef = "qualifierJdbcOperations", dataAccessStrategyRef = "qualifierDataAccessStrategy",
-			transactionManagerRef = "transactionManager",
 			repositoryBaseClass = DummyRepositoryBaseClass.class)
 	static class TestConfiguration {
 

spring-data-jdbc/src/test/java/org/springframework/data/jdbc/testing/TestConfiguration.java

@@ -83,8 +83,8 @@ public class TestConfiguration {
 		return new NamedParameterJdbcTemplate(dataSource);
 	}
 
-	@Bean(name = "transactionManager")
-	PlatformTransactionManager defaultTransactionManager() {
+	@Bean
+	PlatformTransactionManager transactionManager() {
 		return new DataSourceTransactionManager(dataSource);
 	}