Merge Joe - fix bug 641685 statement_transform.cc was not handling NULL values when dealing with NULL values. Merge Shrews - fix bug 641687 - Quote ENUM values when building SQL from GPB Transaction messages. Merge Monty - fix bug 549882 - Throw an error in configure from a bad --prefix value Merge Monty - fix bug 565050 - Don't fail if root user runs drizzled --help