Database container port inconsistency

[mhauru]

The main Makefile and a couple of pages in the documentation assume that the database Docker container is run so that the PostgreSQL port is 5434:
https://github.com/search?q=repo%3Achaoss%2Faugur%205434&type=code

However, some other places use the default port 5432. Here are a few files doing that, I'm not sure I found all of the cases:
https://github.com/chaoss/augur/blob/a786ac5a506ffac31931f40c2a58056b7c1f073c/scripts/control/refresh-matviews.sh
https://github.com/chaoss/augur/blob/a786ac5a506ffac31931f40c2a58056b7c1f073c/docs/new-install.md

augur/docker-compose.yml

Line 13 in a786ac5

- "127.0.0.1:${AUGUR_DB_PORT:-5432}:5432"

augur/augur/application/cli/db.py

Line 323 in a786ac5

@click.option("--port", default="5432")

[GaryPWhite]

I think this is an artifact of times gone by -- augur_database is not the same as the postgres container recently included in the compose file.

some of the blame shows this was done literally 4 years ago -- maybe the project has pivoted since then

[sgoggins]

@ABrain7710 : Can you look into this?