title: CLI isn't recognizing psql command
body: <p>I've installed the Windows version of Postgres, as explained in the instructions <a href="https://devcenter.heroku.com/articles/heroku-postgresql" rel="nofollow">here</a>, and when I try to call <code>heroku pg:psql</code>, I get an error saying <code>The local psql command could not be located</code>. I've tried installing Postgres inside my app directory, but that hasn't worked. </p>