- methods can be private
 - return value from method unused
 - don't throw an exception which would drop the ODBC connection, rather just send an error response

Issue 477: PgServer binary transmission of query params is unimplemented, patch from Andrew Franklin

Improve error message when we have a unique constraint violation, displays the offending key in the error message

Issue 474: H2 Mysql Compatibility code fails to ignore "COMMENT" in CREATE TABLE, patch from Aaron Azeckoski

Add "-list" command line option to Shell tool so that result-list-mode can be triggered when reading from a file