Load TXXX frames that conflict with Picard tags into the ~id3:TXXX namespace
Merge branch 'master' of github.com:musicbrainz/picard into mwiencek-master
Request CAA only if MB indicates release has caa artwork

Since 2013/01/28, web service is indicating if release has artwork
at cover art archive, use this info to prevent useless requests.
Related to http://tickets.musicbrainz.org/browse/MBS-4536
Replace Windows-incompatible characters as the last step (fixes PICARD-393)
Merge branch 'ws_caa_mbs_4536' of https://github.com/zas/picard
Simplify the cover-art-archive element handling
Use CAA information when only 2 or 1 image types are enabled.
Don't download the CAA index.json when no types are enabled
Only create caa_node if it exits in the xml
Don't enable "other versions" if more than one album is selected
Use only the duration from fpcalc (for consistency)
Add %_releasegroup% and %_releasegroupcomment%

For access to the name and disambiguation, respectively.
PICARD-399: clicking an album should always expand it

caused by de521c
Merge branch 'master' of github.com:musicbrainz/picard into mwiencek-master
fix case-sensitivity issues reading TXXX frames
Increase version number, update changelog
Merge branch 'master' of github.com:musicbrainz/picard
remove dupe NEWS item
preserved_tags ignores the first tag in the list
addrelease: Try harder to seed the RE properly

Disc numbers <= 0 were previously changed to values lower than 0 which
caused the RE to crash. Fix this by using the lowest disc number of the
cluster (which is somewhat sorted) to figure out the difference between
that disc number and 0 and use that number to change all disc number to
be 0-based while preserving their order.