Elephant Runner fails on SPARK analysis with new Fetcher/Metrics/Heuristics

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```
12-20-2016 13:15:31 ERROR [ForkJoinPool-1-worker-1] com.linkedin.drelephant.spark.fetchers.SparkRestClient : error reading http://demo-nn1.company.
com:18080/api/v1/applications/application_1482090835601_0359/1/stages
com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "submissionTime" (class com.linkedin.drelephant.spark.fetchers.st
atusapiv1.StageData), not marked as ignorable (23 known properties: "inputBytes", "memoryBytesSpilled", "outputRecords", "numActiveTasks", "details",
"attemptId", "name", "tasks", "schedulingPool", "shuffleReadRecords", "executorSummary", "inputRecords", "diskBytesSpilled", "accumulatorUpdates", "ex
ecutorRunTime", "shuffleWriteBytes", "outputBytes", "numFailedTasks", "numCompleteTasks", "status", "stageId", "shuffleReadBytes", "shuffleWriteRecord
s"])
at [Source: [ {
"status" : "COMPLETE",
"stageId" : 1,
"attemptId" : 0,
"numActiveTasks" : 0,
"numCompleteTasks" : 122,
"numFailedTasks" : 0,
"executorRunTime" : 207244,
"submissionTime" : "2016-12-19T04:52:05.057GMT",
"firstTaskLaunchedTime" : "2016-12-19T04:52:05.058GMT",
"completionTime" : "2016-12-19T04:54:43.396GMT",
"inputBytes" : 0,
"inputRecords" : 0,
"outputBytes" : 0,
"outputRecords" : 0,
"shuffleReadBytes" : 2468364569,
"shuffleReadRecords" : 134378663,
"shuffleWriteBytes" : 0,
"shuffleWriteRecords" : 0,
"memoryBytesSpilled" : 0,
"diskBytesSpilled" : 0,
"name" : "collect at JavaWordCount.java:68",
"details" : "org.apache.spark.api.java.AbstractJavaRDDLike.collect(JavaRDDLike.scala:46)\norg.apache.spark.examples.JavaWordCount.main(JavaWordCount.java:68)\nsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\nsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\nsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\njava.lang.reflect.Method.invoke(Method.java:498)\norg.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:542)",
"schedulingPool" : "default",
"accumulatorUpdates" : [ {
"id" : 2,
"name" : "peakExecutionMemory",
"value" : "302351628"
} ]
}
```

it also fails on `isActive` key.

```
12-20-2016 13:02:44 ERROR [ForkJoinPool-1-worker-5] com.linkedin.drelephant.spark.fetchers.SparkRestClient : error reading http://demo-nn1.company.
com:18080/api/v1/applications/application_1481846366268_2677/1/executors
com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "isActive" (class com.linkedin.drelephant.spark.fetchers.statusapiv1.ExecutorSummary), not marked as ignorable (15 known properties: "executorLogs", "completedTasks", "totalInputBytes", "maxMemory", "activeTasks", "hostPort", "totalTasks", "totalShuffleWrite", "totalShuffleRead", "failedTasks", "rddBlocks", "totalDuration", "diskUsed", "id", "memoryUsed"])
at [Source: [ {
"id" : "driver",
"hostPort" : "10.0.0.179:35425",
"isActive" : true,
"rddBlocks" : 0,
"memoryUsed" : 0,
"diskUsed" : 0,
"totalCores" : 0,
"maxTasks" : 0,
"activeTasks" : 0,
"failedTasks" : 0,
"completedTasks" : 0,
"totalTasks" : 0,
"totalDuration" : 0,
"totalGCTime" : 0,
"totalInputBytes" : 0,
"totalShuffleRead" : 0,
"totalShuffleWrite" : 0,
"maxMemory" : 2061647216,
"executorLogs" : {
"stderr" : "http://demo-dn4.company.com:8042/node/containerlogs/container_e21_1481846366268_2677_01_000001/alex/stderr?start=-4096",
"stdout" : "http://demo-dn4.company.com:8042/node/containerlogs/container_e21_1481846366268_2677_01_000001/alex/stdout?start=-4096"
}
}
```

Start with SparkRestClient and the statusapiv1.StageData and ExecutorSummary classes named in the stack traces. Reproduce a Spark analysis using the shown stages and executors API responses, then inspect how those responses are deserialized. Done means both responses are accepted and the analysis no longer fails on submissionTime or isActive.

Written by the indexing model from the issue text.