message: Adjusted uploading script for Slack
diff: const slackup = require('slackup')
  const fetch = require('node-fetch')
  -const repo = process.env.TRAVIS_REPO_SLUG
  -const commit = process.env.TRAVIS_COMMIT
  -const branch = process.env.TRAVIS_BRANCH
  -const apiKey = process.env.SLACK_API_KEY
  +const {CIRCLE_PROJECT_USERNAME, CIRCLE_PROJECT_REPONAME} = process.env
  +
  +const repo = CIRCLE_PROJECT_USERNAME + '/' + CIRCLE_PROJECT_REPONAME
  +const commit = process.env.CIRCLE_SHA1
  +const branch = process.env.CIRCLE_BRANCH
  +const apiKey = process.env.SLACK_TOKEN
  const channel = process.env.SLACK_CHANNEL
  -const githubToken = process.env.GITHUB_API_KEY
  -const currentNodeVersion = process.env.TRAVIS_NODE_VERSION
  +const githubToken = process.env.GITHUB_TOKEN
  +const currentNodeVersion = process.version
  const regex = /^(node|7)\.*/
  // Skip if not on a zeit repo
  