v0.2.0

v0.2.0

• Add generic list method to list files and folders using parameters: query_name (name contains query_name), parents (specific folder to look), mimeType
• Add helper methods to make it easy to list files (listFilesAt,listFiles) and folders(listFoldersAt, listFolders).
• Save file to specific folder: Pass parents:['folderId'] to the file object when doing saveFile.
  This will add the file named filename.txt to the specific folder with folderId