Fix obscure error on non-standard SELECT * FROM A LEFT JOIN B NATURAL JOIN C

Move some JOIN tests from testScript.sql to own file

Remove unused parameters from readJoin() and readTableFilter()

Handle first and last arguments of FunctionIndex.find()

Remove DbSettings.nestedJoins

Convert duplicate anonymous classes in TableFilter to nested for reuse

Fix ON DUPLICATE KEY UPDATE for inserts with multiple rows

Parse TIME WITHOUT TIME ZONE and fix TIMESTAMP as column name

Update JTS to version 1.15.0 from LocationTech

Assorted changes in help.csv