Version and changelog update.
Add authors to docs.
It seems that the bibstuff authors (accidently?) relicensed the Eppstein's codec under an MIT license, whilst the original source mentions no license. So remove Eppstein from the license statement. Also see http://code.google.com/p/bibstuff/source/browse/trunk/data/latex_codec.py?r=38
Mention older license for previous versions of the package.
Merge pull request #3 from mcmtroffaes/release/0.3.0

Prepare release 0.3.0