[OPEN-ILS-DEV] Postgres requirements for 2.12 and 3.0

[Jason Stephenson]

I have no issues with it. I just wanted to add that Ben Shum and I have
been working on making Pg 9.4 the defaults for new installs with Ubuntu
14.04 Trusty Tahr and Debian 7 Wheezy. This is based on work started by
Chris Sharp. See https://bugs.launchpad.net/evergreen/+bug/1493824

In general, I don't think sites should be doing new installs with Trusty
and Wheezy, but we still have issues with some lesser-used bits of
Evergreen on Ubuntu 16.04 Xenial Xerus and Debian 8 Jessie.

We also keep the latest two LTS releases of Ubuntu and the latest two
releases of Debian available in the Makefiles.  We should keep them up
to date since they are there.

For reference Debian 7 Wheezy has LTS from the Debian community until
May 2018. Ubuntu 14.04 Trusty Tahr has LTS from Canonical and the
community through April 2019. These dates coincide rather closely with
the end of life dates for Postgres 9.4 and Evergreen releases 2.12 and 3.0.

I am trying to make the preemptive case for keeping support for Wheezy
and Trusty in mainline Evergreen through release 3.0 with PostgreSQL 9.4
as the baseline database.

Cheers,
Jason