Some extra script tests.

Create 'time | jdbc' and 'tcp | file' streams.
Try to fix tcp test on CI server.

Output file wasn't found but was there once tests
had completed.
XD-1091 XD-1088 stepExecution progress info

- Added REST endpoint to GET StepExecution progress info
 - Added resource assembler support
 - Added tests
- Added shell command to get the progress info
 - Created shell command 'job execution step progress" with
   jobExeuctionId and stepExecutionId being the options
 - Added tests
XD-1091 Fix review comments
Merge

Updated command description