add `seriesCatalogOutput` arg

[lindsayplatt]

Laura likes to use seriesCatalogOutput = TRUE for dataRetrieval calls but I didn't show an example of that anywhere. Would be nice to add it, but not priority for initial release at end of FY17.

[lindsayplatt]

See https://github.com/USGS-R/training-curriculum/pull/263/files#r124913960