planning/timeline/timeline.2013.xls: updated for progress

bugfix: schemas/vegbien.sql: location: use the place_id from the parent location when no place_id is specified. this fixes a bug in analytical_stem_view where the parent location's place_id was used because it was sometimes missing from the sublocation, but the parent place_id itself was sometimes missing instead if sublocations each had their own place information. this way, it is always available directly in the sublocation, populated from the parent location if needed.

bugfix: schemas/vegbien.sql: location: added place_id which is autopopulated from the current locationplace. join on this in plot.**, to avoid a 1:many join when a location has multiple locationplaces.

bugfix: schemas/vegbien.sql: locationevent_unique_within_parent_by_location unique index: need COALESCE around location_id since it's nullable

fix: inputs/CVS/^taxon_observation.**.sample/: added _no_import because this table duplicates part of what's imported from taxon_observation.**

bugfix: inputs/VegBank/plot/: added _no_import because this table is left-joined and should not be imported separately

bugfix: inputs/{.NCBI,CTFS}/*.src/: added _no_import because these tables are left-joined and should not be imported separately

inputs/import.stats.xls: removed table names from datasources where only one table is imported

fix: inputs/import.stats.xls: removed deleted tables from current import

inputs/import.stats.xls: updated import times