Any reason why PigServer.registerScript(..) chooses to only parse and not
execute, vs executing a pig script via command line invokes the same method
and chooses to execute right away. The latter makes sense to me, but not
sure why the behavior of PigServer API is not in sync with that?
The difference in code is GruntParser.parseStopOnError(boolean) is called
with different arguments in the 2 cases.