[FLINK-4199] Fix misleading CLI messages and return execution result for interactive blocking execution

[mxm]

OLD

Cluster retrieved: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Submitting job with JobID: 9c7120e5cc55b2a9157a7e2bc5a12c9d. Waiting for job completion.
org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Communication with JobManager failed: Lost connection to the JobManager.
Job has been submitted with JobID 9c7120e5cc55b2a9157a7e2bc5a12c9d

NEW

Cluster configuration: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Executing WordCount example with default input data set.
Use --input to specify file input.
Printing result to stdout. Use --output to specify output path.
Submitting job with JobID: 20d070cf6a4289df4e5045c9c52cc47b. Waiting for job completion.

------------------------------------------------------------
 The program finished with the following exception:

org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Communication with JobManager failed: Lost connection to the JobManager.

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OLD

Cluster retrieved: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Submitting job with JobID: 477429b836247909dd428a6cba5b923b. Waiting for job completion.
07/12/2016 16:18:52 Job execution switched to status RUNNING.
07/12/2016 16:18:52 Source: Socket Stream -> Sink: Unnamed(1/1) switched to SCHEDULED
07/12/2016 16:18:52 Source: Socket Stream -> Sink: Unnamed(1/1) switched to DEPLOYING
07/12/2016 16:18:52 Source: Socket Stream -> Sink: Unnamed(1/1) switched to RUNNING
07/12/2016 16:18:58 Source: Socket Stream -> Sink: Unnamed(1/1) switched to FINISHED
07/12/2016 16:18:58 Job execution switched to status FINISHED.
Job has been submitted with JobID 477429b836247909dd428a6cba5b923b

NEW

Cluster configuration: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Executing WordCount example with default input data set.
Use --input to specify file input.
Printing result to stdout. Use --output to specify output path.
Submitting job with JobID: a56b184080d9755d3f2d40c7d9092b31. Waiting for job completion.
07/18/2016 16:42:23 Job execution switched to status RUNNING.
07/18/2016 16:42:23 Source: Collection Source -> Flat Map(1/1) switched to SCHEDULED 
07/18/2016 16:42:23 Source: Collection Source -> Flat Map(1/1) switched to DEPLOYING 
07/18/2016 16:42:23 Keyed Aggregation -> Sink: Unnamed(1/1) switched to SCHEDULED 
07/18/2016 16:42:23 Keyed Aggregation -> Sink: Unnamed(1/1) switched to DEPLOYING 
07/18/2016 16:42:23 Keyed Aggregation -> Sink: Unnamed(1/1) switched to RUNNING 
07/18/2016 16:42:23 Source: Collection Source -> Flat Map(1/1) switched to RUNNING 
07/18/2016 16:42:23 Source: Collection Source -> Flat Map(1/1) switched to FINISHED 
07/18/2016 16:42:23 Keyed Aggregation -> Sink: Unnamed(1/1) switched to FINISHED 
07/18/2016 16:42:23 Job execution switched to status FINISHED.
Program execution finished
Job with JobID a56b184080d9755d3f2d40c7d9092b31 has finished.
Job Runtime: 25 ms

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