Assorted changes in help.csv

Parse more variants of timestamps with time zones

TIMESTAMP WITHOUT TIME ZONE, TIMEZONE_HOUR, and TIMEZONE_MINUTE

Assorted minor changes in Parser

Update documentation of date-time types and clean up related code a bit

Implement conversions for TIMESTAMP WITH TIME ZONE

Fix two-phase commit in MVStore

issue#884 Wrong test Resources path in pom.xml

Fix building of documentation

Add support for TIMESTAMP WITH TIME ZONE to FORMATDATETIME

Return all generated rows and columns from getGeneratedKeys()