postConfigure should check for local rpm / bins existing

I think it would be helpful for postConfigure to explicitly check for the rpms or bin tar in the local pm1 directory. Currently if they are not there then it fails and tells you to check the log files in /tmp.

In this case i think it would be friendlier to check for some files existing for the same wildcard pattern and then fail with a descriptive message and action to fix. This would be a lot more user friendly for this case.