code: function isScm (version) {
    var scmPrefixes = ['git:', 'git+ssh:', 'https:', 'git+https:']
    var blacklisted = scmPrefixes.filter(function (prefix) {
      return version.indexOf(prefix) === 0
    })
    return !!blacklisted.length
  }
docs: Determine if a version is a SCM URL or not.
  @param {String} version
  @return {Boolean}