code: function compareVersion(version1, version2) {
    version1 = cleanupVersion(version1).split('.');
    version2 = cleanupVersion(version2).split('.');
    for (let i = 0; i < 3; i++) {
      let compared = compare(+version1[i], +version2[i]);
      if (compared !== 0) {
        return compared;
      }
    }
    return 0;
  }
docs: Compares two Ember versions.
  
  Returns:
  `-1` if version < version
  0 if version1 == version2
  1 if version1 > version2
  
  @param {String} version1
  @param {String} version2
  @return {Boolean} result of the comparison