TRIVIAL better handling in filter_old_files
Finished release v0.0.9.

* release/v0.0.9:
  TRIVIAL better handling in filter_old_files
  HOSTDEV-1199 add parameter to specify parent dir name in archive
  prefer-final=false
  TRIVIAL fixing was_this_file_modified_recently
  TRIVIAL parse_timedelta now accepts strings like '10d
  TRIVIAL adding support for optional_tempfile_dir for systems without a lot of free space on /tmp
  fixing tests