NBConvert Examples in IPython 3?

The documentation on ipython says these [examples still apply](http://ipython.org/ipython-doc/stable/notebook/nbconvert.html?highlight=latex), but the bibtex examples don't work [when I pull them in](http://nbviewer.ipython.org/github/ipython/nbconvert-examples/blob/master/citations/LifecycleTools.ipynb)

Not sure how this would apply given the changes since #6

Start with the linked nbconvert documentation and the citations/LifecycleTools.ipynb notebook in nbconvert-examples, then reproduce the reported bibtex failure. Review the changes since issue #6 and update the example or its documentation so the bibtex workflow works as described for IPython 3.

Written by the indexing model from the issue text.