Log Message:
Update 0.18 to 0.22
-------------------
0.22  (2015/03/08)
   (ms) Added tar_gnu_write_options option suggested by Csaba Major with
        tests and docs.

0.21  (2014/10/16)
   (ms) [rt.cpan.org 87536] Setting default umask to get predictable test
        results regardless of local umask settings.

0.20  (2014/09/29)
   (ms) Ignore errors on chown/chgrp when files from different owners/groups
        are copied into a tarball, accept the limitation that they'll be
        owned by the script user unless we're running as superuser.

0.19  (2014/02/16)
   (ms) RsrchBoy added support for bzip2-compressed tarfiles.