no, it's not. The packages "*-portlet" and applets (like dotlrn-forums) belong to dotlrn. The packages "*-includelet" belong to the layout-manager package and a layout-managed-subsite packages.
See some discussion about this in:
https://openacs.org/forums/message-view?message_id=2984766
The bug tracker does not have entries for all packages, the *-includelet" packages are not there. maybe someone with admin right can add these packages to the bug-tracker, i can do that as well, when i am back from vacation.
