[github-auth] accept API token instead of user/pass

[ungoldman]

No description provided.

[ungoldman]

@bcomnes do you think https://github.com/rvagg/ghauth will do the trick? might also mean gh-release wouldn't need to rely on the github package.

[bcomnes]

Uh oh, getting errors on the head of auth now (cf511ed):

Bret-MBR:gh-release-test bret$ gh-release 
{ tag_name: 'v1.0.1',
  target_commitish: '40c8e8708a315a00b7673eabbc27a83438305c10',
  name: 'v1.0.1',
  body: '* Made another release\n\n',
  owner: 'bcomnes',
  repo: 'gh-release-test',
  draft: false,
  prerelease: false }
? does this look right? Yes
{ [Error: {"message":"Server Error","documentation_url":"https://developer.github.com/v3"}]
  message: '{"message":"Server Error","documentation_url":"https://developer.github.com/v3"}',
  code: 500 }

Woops forgot to push!

[bcomnes]

Looks ready to merge to master to me if your cool with that.

[ungoldman]

@bcomnes I'm still doing a little work on auth -- I'll open a PR in a little bit.

[ungoldman]

@bcomnes I ran into the 500 error from github too when forgetting to push for https://github.com/bcomnes/gh-release-test -- note to self to check if the commit being released is on github first then display a better error message.