Log message:
*: bump PKGREVISION for egg.mk users

They now have a tool dependency on py-setuptools instead of a DEPENDS

Log message:
New package for py-mediafile-0.8.1.

This is part of addressing PR pkg/56378.

MediaFile is a simple interface to the metadata tags for many audio file
formats. It wraps Mutagen, a high-quality library for low-level tag
manipulation, with a high-level, format-independent interface for a common set
of tags.

MediaFile is part of the beets project. It was originally written by Adrian
Sampson and is now developed by the beets community.