Turn the URLs for the privacy policy and terms of service into parameters.

If you are upgrading, you will need to add these parameters to your
environment file:

  # These are the URLs for your privacy policy and your terms of service
  PRIVACY_POLICY_URL = 'http://www.personalgenomes.org/privacypolicy.html'
  TOS_URL = 'http://www.personalgenomes.org/tos.html'

Adjust the URL for your installation.
Turn the Google Analytics Tracker ID into an environment parameter.

If you are upgrading, you will need to add this to your environment file:

  # Your Google Analytics Tracker ID, usually this looks something like UA-XXXXX-X
  GOOGLE_ANALYTICS_TRACKER_ID = ''

and fill in your tracker id.