This is a pre-build python-nvd3 library. It was built from the
Git repository:
https://github.com/areski/python-nvd3

Based on revision:
commit deb12255fa61f0ff3fa4b41699e0ef8e62fbd4a6
Author: Areski Belaid <areski@gmail.com>
Date:   Mon Feb 10 15:27:20 2014 +0100

Using Python 2.7.5

To reproduce run:

$ cd wiredtiger/tools/third_party
$ git clone https://github.com/areski/python-nvd3
$ cd python-nvd3
$ git checkout deb12255
$ python27 setup.py build
$ cp build/lib/nvd3/* nvd3/

