Use $PORT env variable

TEMPLATE.env

@@ -47,15 +47,8 @@ ONLY_SUPERUSERS_CREATE=True
 # Will skip only if value is False.
 PERFORM_CHECKS_AND_SETUP=True
 
-# Your admin user's email. A temporary password will be printed
-# to the console on first run.
-SHYNET_ADMIN_EMAIL=you@example.com
-
-# The domain on which you'll be hosting Shynet. 
-SHYNET_HOST=shynet.example.com
-
-# What you'd like to call your Shynet instance.
-SHYNET_WHITELABEL=My Shynet Instance
+# The port that Shynet should bind to. Don't set this if you're deploying on Heroku.
+PORT=8080
 
 # Redis, queue, and parellization settings; not necessary for single-instance deployments.
 # Don't uncomment these unless you know what you are doing!