Update to 0.29

Upstream changes:
0.29  2018-08-05
- Stable release to CPAN.

0.28_03  2017-01-22
- `mimeinfo --stdin` did not work. Reported by Marius Gavrilescu,
    Debian bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=784545
    Added minimal tests for `mimeinfo`.

0.28_02  2016-12-17
- Improved handling of Path::Tiny objects in default method.

0.28_01  2016-11-29
- Spelling fix courtesy gregor herrmann, Debian Perl group (fixes #25)
- Added t/000-report-versions-tiny.t to find out issue with Path::Tiny file
  handles.

(wen)