[Denemo-devel] Updating reference files for system testing

[Richard Shann]

Eloi,
I introduced a new field in the .denemo format and the automatic build's
test started failing because it wasn't present in the reference file
blank.denemo.
I edited this by hand, but we need a make target which behaves like the
test target except that instead of diffing the outputs it copies them as
the new reference files.

Richard