Add flow name, job id and execution id to the java JVM argument list to easily map to Azkaban execution id #290

* Add exception to a few logging statement to make it easier to debug issues

* Add Azkaban flow, job, and execution id to java JVM argument list to make it easier to map a Java process to an Azkaban execution id.  This idea came from Reportal.

Fixes #290
I think it would be easier to read if you just combined all this into
```
jobJVMArgs += (previousJVMArgs == null) ? "" : previousJVMArgs
```
and then used jobJVMArgs below instead of previousJVMArgs