This commit also includes:
- whitespace / code formatting fixes
- slight syntax related changes: except <exception_name>, e -> except <exception_name> as e
- 3 pointless instructions instances have been rewritten [sorted] (spotted by semi-automatic check)
The unrelated changes shouldn't have any real impact on whipper's behaviour.
* Use artist-credit->name
Use artist-credit->name, if it exists. Otherwise use artist-credit->artist->name.
* Add test case
* Fix for PEP8
* transform comment to docstring
* reject 'recording artist name' in favour of 'release artist name'
* reject 'recording artist name' in favour of 'release artist name'
Make MusicBrainz consistently written as "MusicBrainz" and not
"musicbrainz" or "Musicbrainz".
Doesn't change instances that refer to the Python module or similar.
