jupyter/tmpnb — pull request #98 by rgbkrk (2014-11-13 16:57:22+00:00)
Title: Update demo notebooks to nbformatv4

As @minrk did in https://github.com/ipython/ipython/pull/6843, I upgraded these notebooks in place using:

```bash
find . -name '*.ipynb' -exec ipython nbconvert --to notebook {} --output {} \;
```