Description of problem:
system.listPackages doesn't return the package IDs in the results.
The package ID would be useful here when going to remove a package. It would allow for sanity checking on the client side instead of relying on an exception from the server when trying to remove packages that aren't actually installed.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Call system.listPackages on a system
The package IDs are not included in the results
The package ID for each package should be included in the results
Not needed for this use case and I can't think of any others where this is really useful.