schemas/public_.sql: analytical_stem_view: use viewFullOccurrence_individual_view to avoid duplicated code between the views. this moves the stem-related columns to the end of the view.

schemas/public_.sql: added viewFullOccurrence_individual_view

web/username_prefix.php: substitutions: also support "" because Postgres doubles " to escape them

web/username_prefix.php: added support for substitutions ( x."_y@url -> x.x_y@url ), which can be used when a table name is repeated in a column name

backups/TNRS.backup.md5: updated

schemas/util.sql: derived_col_constraint_initially_enabled(): clarified that this is always based on whether the existing constraint is enabled

inputs/.TNRS/schema.sql: taxon_match: COMMENT: added steps to port derived column changes to vegbiendev

schemas/util.sql: added derived_cols_export(), which creates SQL to port the derived cols to another DB

bugfix: inputs/.TNRS/schema.sql: taxon_match: derived columns: use new "matched~Name[_no_author]___@TNRS__@vegpath.org" instead of "*Name_matched" so that "No suitable matches found." is removed before concatenating with other fields

inputs/.TNRS/schema.sql: taxon_match: added derived column "matched~Name[_no_author]___@TNRS__@vegpath.org", which removes the "No suitable matches found." string