fix a cell that escaped revision.
Merge branch 'master' of github.com:patwmcnamara/GADS11-NYC-Summer2014
added edited Ensembles.ipynb
Merge branch 'master' of github.com:patwmcnamara/GADS11-NYC-Summer2014
lesson 17 - NLP. solutions to follow.
edited Ensembles lab
Merge branch 'master' of https://github.com/patwmcnamara/GADS11-NYC-Summer2014