mappings/VegCore-VegBIEN.csv: Only use one of collection and collectionURL instead of concatenating them when both are provided (as requested by Brad <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Spot-checking#ACAD>)
mappings/VegCore-VegBIEN.csv: Only use one of collection and collectionURL instead of concatenating them when both are provided (as requested by Brad <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Spot-checking#ACAD>)