0.46.1

Fixed

• ess verify diff classifies an outcome's error payload sources (ess/19 payload: keyed by the
  error a refusal reports) instead of reporting one system/<name>/unclassified-changed
  (#253). Declaring sources on an outcome is
  command/<command>/outcome-error-payload-added/<outcome>, dropping them is
  outcome-error-payload-removed and replacing them is outcome-error-payload-changed: one change
  per outcome, each side one <Error>.<field> <- <source> line per determined field, related
  changed as the event payload's outcome-payload-changed is.
• ess verify diff also classifies an outcome's accepts: nothing (ess/15), returns: (ess/17)
  and caller-decided refusal (ess/16) moving, as outcome-accepts-nothing-changed,
  outcome-returns-changed and outcome-decided-by-caller-changed, {outcome, before, after}
  booleans related changed as outcome-refuses-changed is. Each fell to
  unclassified-changed before.
• The new kinds need ess-diff/12 (released in 0.46.1; ess-diff/11 shipped in 0.42.0); writers
  and readers of /3 to /11 refuse them with unsupported_format_version. A delta without one of
  them keeps its format and bytes. A test now fails when a compiled outcome writes a key the diff
  neither compares nor deliberately leaves to the residual.