upcoming 0.4.2 release

Hi all, just wanted to let everyone know that we are planning a 0.4.2 release next week. A few things will be included:

* the annoying bug caused by issuing output_notebook() twice is fixed, plus some other bugs
* new %bokeh magic for IPython notebook, more flexible modes of usage in the notebook
* increased MPL support --- several Seaborn examples are now runnable
* more docs improvements and additions

Speaking of which, the fairly large tutorial I gave at PyData London is now integrated into the full online documentation:


We are still targeting the end of March for 0.5, which will include lots of great new features!