chore: remove unused install.js script
chore: add grunt tasks for releasing
feat: allow global configuration

// karma.conf.js
sauceLabs: {
  username: 'vojtajina',
  apiKey: 'xxxx',
  startConnect: false
}
refactor: rename apiKey -> accessKey

That's the name that Sauce Labs use in their docs and everywhere...
feat: allow global config of testName, tags
refactor: clean up logging