Updated job.adoc to have java config examples

This commit addresses the job.adoc and how to configure the various
pieces of the framework it covers via java configuration.

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/EnableBatchProcessing.java

@@ -97,7 +97,6 @@ import org.springframework.transaction.PlatformTransactionManager;
  * <li>a {@link JobRepository} (bean name "jobRepository")</li>
  * <li>a {@link JobLauncher} (bean name "jobLauncher")</li>
  * <li>a {@link JobRegistry} (bean name "jobRegistry")</li>
- * <li>a {@link org.springframework.batch.core.launch.JobOperator} (bean name "jobOperator")</li>
  * <li>a {@link org.springframework.batch.core.explore.JobExplorer} (bean name "jobExplorer")</li>
  * <li>a {@link PlatformTransactionManager} (bean name "transactionManager")</li>
  * <li>a {@link JobBuilderFactory} (bean name "jobBuilders") as a convenience to prevent you from having to inject the

spring-batch-test/src/test/java/org/springframework/batch/test/JobLauncherTestUtilsTests.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.batch.test;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.Test;
 
 import org.springframework.batch.core.ExitStatus;
@@ -36,6 +34,8 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import static org.junit.Assert.assertEquals;
+
 /**
  * @author mminella
  */