Change paths from root dir not current working dir.
Change paths from root dir not current working dir.

yepengxj/conda-buildpack-test,pl31/heroku-buildpack-conda,ihuston/python-conda-buildpack,pl31/ipython-notebook-buildpack,p-a-c-o/ipython-notebook-buildpack,ronert/python-conda-buildpack,gmarkall/python-conda-buildpack