code: function aggregateTransforms(schemaVersion, currentVersion, upgradeFile) {
    var transformVersions = generateVersionArray(upgradeFile),
      applicableVersions = [];
  
    for (let i = 0; i < transformVersions.length; i++) {
      let version = transformVersions[i];
  
      if (!currentVersion && schemaVersion || schemaVersion >= version && version > currentVersion) {
        applicableVersions.push(transformVersions[i]);
      }
    }
  
    return applicableVersions;
  }
docs: Iterate through the array of version transforms provided
  and determine which versions are valid to be run.
  
  - If the data has no current version but the schema declares
  one, then run it
  - If the current schema version is greater than the current
  version AND the tranform version is greater than the current
  version, run it.
  
  @param  {Number} schemaVersion
  @param  {Number} currentVersion
  @param  {Object} upgradeFile
  @return {Array}