[IPP] [PWG5100.8] Issue #42: -actual attributes should be in the Job Status group

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[Issue Unconfirmed]

Throughout this document, the values of the "-actual" attributes are
defined as set by the Printer, either by copying from the corresponding Job
Template attribute or recording the values used during processing of the
Job.

We should say these are READ-ONLY attributes in the Job Status group that
cannot be set directly.

Link: http://www.pwg.org/issues/42