Update the client_secrets.json with redirects and javascript origins to
each developers appengine version.

To deploy code:
  appcfg.py --version=${dev_name} update .

This will update the version at
  ${dev_name}.ninja-bounce-house.appspot.com

If another version needs to be created that is not default, laurabeth, josh, neha, or nolan, then update the  client_secrets.json by downloading an update json from the Cloud Console > APIs & auth > Credentials at

https://console.developers.google.com/project/apps~ninja-bounce-house/apiui/credential