Version 2.0.0a6

Breaking Changes

• File.update_contents() and File.update_contents_with_stream() now
  correctly return a File object with the correct internal JSON structure.
  Previously it would return a File object where the file JSON is hidden
  inside file['entries'][0]. This is a bugfix, but will be a breaking
  change for any clients that have already written code to handle the bug.

Features

• The JWTAuth constructor now supports passing the RSA private key in two different
  ways: by file system path (existing functionality), or by passing the key
  data directly (new functionality). The rsa_private_key_file_sys_path
  parameter is now optional, but it is required to pass exactly one of
  rsa_private_key_file_sys_path or rsa_private_key_data.

Other

• Bugfix so that the return value of JWTAuth.refresh() correctly matches
  that of the auth interface (by returning a tuple of
  ((access token), (refresh token or None)), instead of just the access token).
  In particular, this fixes an exception in BoxSession that always occurred
  when it tried to refresh any JWTAuth object.