- Added Python 3 support

- Changed from ZODB3 to ZODB.
Fixed typo.
Depending on how these get executed, quotes might be needed. They
aren't needed now, but we'll try including them for appearances sake.
The Python 3 octal notation works in Python 2.6. Cool.
avoid spurious test failutes (Travis).
Added python version (and other) classifiers.
Merge pull request #1 from zopefoundation/python3

Added Python 3 support