Issue #285 - injecting in job dependencies information into the Hadoop configuration

Following the same approach that was used for injecting in the job, execution and attemp links
./plugins/jobtype/src/azkaban/jobtype/HadoopPigJob.java:    return StringUtils.join((Collection<String>) list, " ");
./plugins/jobtype/src/azkaban/jobtype/AzkabanPigListener.java:          + StringUtils.join(aliases, ",") + ", name: " + node.getName()
./plugins/jobtype/src/azkaban/jobtype/AzkabanPigListener.java:          + ", features: " + StringUtils.join(features, ","));
./plugins/jobtype/src/azkaban/jobtype/HadoopHiveJob.java:    return StringUtils.join((Collection<String>) list, " ");
./plugins/jobtype/src/azkaban/jobtype/PigProcessJob.java:    return StringUtils.join((Collection<String>) list, " ");
/azkaban-webserver/src/main/java/azkaban/webapp/AzkabanWebServer.java:    String jarResourcePath = StringUtils.join(jarPaths, ", ");
./azkaban-webserver/src/main/java/azkaban/webapp/AzkabanWebServer.java:    String jarResourcePath = StringUtils.join(jarPaths, ", ");
./azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java:        String ids = StringUtils.join(jobIds, ',');
./azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java:                  + StringUtils.join(running, ",")
./azkaban-common/src/main/java/azkaban/utils/PropsUtils.java:            StringUtils.join(visitedVariables, "->"), subVariable));
./azkaban-common/src/main/java/azkaban/utils/PropsUtils.java:              StringUtils.join(visitedVariables, "->")));

I think it is best to leave it alone.