Extract name of bib file from aux file

[Kjell Magne Fauske]

Currently pybtex assumes that the name of a document's bib file is the same as the name of the aux file given as a parameter to pybtex. A nice feature would be look for the bib file name in the aux file.

I usually prefer to have one master bibliography file that I specify in my document using:

bibliography{nameoffile}

This information is stored in the aux file as: bibliography{nameoffile}

The default behavior should be to look for nameoffile.bib first and then fall back on nameofauxfile.bib

[Andrey Golovizin]

- status: open --> closed

[Andrey Golovizin]

Fixed in revision 429.