Version 0.22.2
- Fixed compatibility with Python 2 and older versions of Python 3.
Version 0.22.1
- Fixed non-working ``--backend`` option with ``pybtex -l python``.
Version 0.22.0
Fixed handling of duplicate fields in .bib biles.
BibTeX parser is now up to 10% faster on some files.
Fixed parsing of names with \~ characters.
Fixed formatting proceedings without an editor field in unsrt.py.
In case of too many braces in a BibTeX string, PybtexSyntaxError is now raised instead of RecursionError.
Dropped 2to3, made the code compatible with both Python 2 and 3 with Six.
Moved tests outside of the pybtex package.
Fixed searching in docs with recent versions of Sphinx.
API: renamed bibtex.BibTeXEntryIterator to bibtex.LowLevelParser for clarity.
API: removed confusing usage of Person.text in tempate.names.
API: Entry.fields does not automagically look for cross-referenced entries anymore.
