[SPARK-5495][UI] Add app and driver kill function in master web UI

[jerryshao]

Add application kill function in master web UI for standalone mode. Details can be seen in SPARK-5495.

The snapshot of UI shows as below:

Please help to review, thanks a lot.

[SparkQA]

Test build #26395 has started for PR 4288 at commit ef19401.

• This patch merges cleanly.

[SparkQA]

Test build #26396 has started for PR 4288 at commit 5e33eaa.

• This patch merges cleanly.

[SparkQA]

Test build #26395 has finished for PR 4288 at commit ef19401.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class TreeEnsembleModel(JavaModelWrapper):
  • class DecisionTreeModel(JavaModelWrapper):
  • class RandomForestModel(TreeEnsembleModel):
  • class GradientBoostedTreesModel(TreeEnsembleModel):
  • class GradientBoostedTrees(object):

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/26395/
Test PASSed.

[SparkQA]

Test build #26396 has finished for PR 4288 at commit 5e33eaa.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class TreeEnsembleModel(JavaModelWrapper):
  • class DecisionTreeModel(JavaModelWrapper):
  • class RandomForestModel(TreeEnsembleModel):
  • class GradientBoostedTreesModel(TreeEnsembleModel):
  • class GradientBoostedTrees(object):
  • trait Star extends Attribute with trees.LeafNode[Expression]
  • case class UnresolvedStar(table: Option[String]) extends Star
  • case class ResolvedStar(expressions: Seq[NamedExpression]) extends Star

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/26396/
Test PASSed.

[SparkQA]

Test build #27323 has started for PR 4288 at commit 2495c49.

• This patch merges cleanly.

[SparkQA]

Test build #27323 has finished for PR 4288 at commit 2495c49.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/27323/
Test PASSed.

[andrewor14]

LGTM. I think this will be useful for many deployments. Can you rebase to master?

[jerryshao]

Yeah, I will, thanks a lot :).

[SparkQA]

Test build #28035 has started for PR 4288 at commit fa3e486.

• This patch merges cleanly.

[SparkQA]

Test build #28035 has finished for PR 4288 at commit fa3e486.

• This patch fails Spark unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

[AmplabJenkins]

Test FAILed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/28035/
Test FAILed.

[andrewor14]

retest this please. We really need to fix this flaky test

[SparkQA]

Test build #28044 has started for PR 4288 at commit fa3e486.

• This patch merges cleanly.

[SparkQA]

Test build #28044 has finished for PR 4288 at commit fa3e486.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/28044/
Test PASSed.