Ah, dammit! This is what happens when I go through too many things at once. Nice catch; thanks.
Was the gold standard updated after the solar metallicity was changed? This could be the issue with those tests. If not, I don't really see how this would cause any tests to fail because none of them even use this.
This was all noise because of Jenkins. Brian's original comment is correct.
This PR passes all of the tests (except for the two that always fail now.).
Ok, this is good to go. @bwoshea, if you approve, go ahead and merge it.