schemas/public_.sql: validation views: use analytical_stem_view instead of analytical_stem because analytical_stem is no longer materialized (viewFullOccurrence_individual_view is materialized instead)

schemas/public_.sql: derived views: use analytical_stem_view instead of analytical_stem because analytical_stem is no longer materialized (viewFullOccurrence_individual_view is materialized instead)

bugfix: schemas/util.sql: expansion_min_cols(): increased to properly handle all public-schema views (the largest is currently 2014-6-12.Jeff_Ott.climatic_range_determinants)

schemas/util.sql: view_def_to_orig(): use new expansion_min_cols() for easier configuration

schemas/util.sql: added expansion_min_cols() (the minimum # of cols from the same table to be treated as a * expression)

fix: schemas/public_.sql: analytical_stem_view: regenerated columns list for viewFullOccurrence_individual (instead of viewFullOccurrence_individual_view)

bugfix: mappings/VegCore-VegBIEN.csv: prefixed taxonomic ranks: use _concat_nullify() so that the prefix is only added if the epithet is non-NULL

fix: schemas/util.sql: col_re(): support column names with " in them

schemas/util.sql: added _concat_nullify(), which uses || instead of concat()

bugfix: inputs/FIA/REF_RESEARCH_STATION/map.csv: mapped country, which is not provided in the FIA data