can I use Postgres connection strings?

The original code this was based on is pretty old now (originally written in 2012) and I think connection strings will let you pass in the password without the pgpass file hack I originally wrote back in the day.

```
psql "sslmode=require host=localhost dbname=test"
```

[via](http://stackoverflow.com/questions/14021998/using-psql-to-connect-to-postgresql-in-ssl-mode)
