Don't require access_token for public gists
Don't require access_token for public gists

If you give github a blank token, then it fails where it would have succeeded given no token.

e.g.
  
  https://api.github.com/gists/9546462?access_token=

is bad, where

  https://api.github.com/gists/9546462

works.
HolyHaddock/fourth-wall,Wynndow/wynndow.github.io,HolyHaddock/fourth-wall,HolyHaddock/fourth-wall,dxw/fourth-wall-for-gitlab,Wynndow/wynndow.github.io,dxw/fourth-wall-for-gitlab,alphagov/fourth-wall,alphagov/fourth-wall,dxw/fourth-wall-for-gitlab,alphagov/fourth-wall,Wynndow/wynndow.github.io