Move from v9.4 to v15

I wanted to thank everyone who helped out in our transition to the new
version.
Thanks especially to Tom, Laurenz, and Adrian.

It has taken over a year, since this upgrade project kept getting
superseded by more important projects, and because I only work with this
client one day a week, but as of this morning, we are finally operating on
v15.

The big issue we ran into, and solved months ago, was the change in default
date time precision.

Besides being on a current version, the two big benefits we are looking
forward to are
1. support for tracking long running queries.
2. improved support for replication enabling us to set up a hot backup.

On the flip side, expect more questions as we attempt to get replication
set up. 8: -)

Thanks,
Brad.