- update to version 0.18
- Pybtex is now fully case-insensitive (like BibTeX). As a
consequence, IEEEtran styles now work corretly.
- Added ``--preserve-case`` optoin to ``pybtex-convert`` (by
default all identifiers are converted to lower case).
- An erorr is reported if two citations have the same key but
different case, like in BibTeX. (Example: ddt1999 and DDT1999).
- Fixed parsing unused bibliography entries with strings
containing @ characters.
- ``entry.max$`` constant is now set to 250, ``global.max$`` is
set to 20000, like in BibTeX.
- Added ``--strict`` option to ``pybtex-convert`` and
``pybtex-format`` (turns warning to errors).
- Strict mode is now enabled by default when using pybtex as a
library (exceptions are raised on all errors instead of just
printing warnings to stderr).
Non-strict error handling is still enabled when using pybtex
from the command line, for compatibility with BibTeX. Use
``--strict`` option if you don't like this.
- Added missing pybtex-format manpage.