Mutagen

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* Bug Fixes:

* MP3: Load files with zeroed Xing headers. (626)
* ID3: Upgrade ID3v2.2 PIC tags to ID3v2.4 APIC tags properly.
* Tests exit with non-zero status if any have failed.
* Full dict protocol support for VCommentDict, FileType, and APEv2 objects.

* New features:

* mutagen.oggvorbis gives pyvorbis a Mutagen-like API.
* mutagen.easyid3 makes simple ID3 tag changes easier.
* A brief TUTORIAL was added.

* Tools:

* mid3iconv, a clone of id3iconv, was added by Emfox Zhou. (605)

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* ID3:

* Frame and Spec objects are not hashable.
* COMM, USER: Accept non-ASCII (completely invalid) language codes.
* Enable redundant data length bit for compressed frames.

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* mutagen.FileType, an abstract container for tags and stream information.
* MP3: A new FileType subclass for MPEG audio files.
* FLAC:

* Add FLAC.delete.
* Raise correct exception when saving to a non-FLAC file.
* FLAC.vc is deprecated in favor of FLAC.tags.

* VComment (used by FLAC):

* VComment.clear to clear all tags.
* VComment.as_dict to return a dict of the tags.

* ID3:

* Fix typos in PRIV._pprint, OWNE._pprint, UFID._pprint.

* mutagen-pony: Try finding lengths as well as tags.
* mutagen-inspect: Output stream information with tags.

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* Initial release.