inputs/*/*/map.csv: Changed empty mappings to self mappings, using the steps at <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/Map_refactoring#Change-empty-mappings-to-self-mappings&gt;. Note that in map.full.csv and VegBIEN.csv, lines that have changed are always the result of the input field's case being changed to match the case of the datasource's actual column name.