Various fixes for "function_args"
- The default value for "authority_id" in acs_user__new was missing.
- Removed leftovers from earlier changes in the SQL API. The update
scripts did not care about function args, so orphaned entries could
cause confusions.
- The drop-package SQL function did not care about deleting entries on
the function args table. The function args deleted here are created
automatically by the Tcl proc "package_generate_body".
- bumped verison of acs-kernel to 5.10.1b6