Fix Copy Exemplar Metadata

1) Localization text and ID were switched
2) Copying failed if image file was readonly
AttemptToX and XIfItMakesSense (and for that matter TryX) all suggest to me that we will do X unless something prevents us, in which case we will quietly and safely do nothing (though I expect TryX to return a boolean saying whether we did it).

I don't see why we need two methods. Why not just inline the old code as the body of the try block?