added scikit-learn step
moved the scikit-learn step
Added proper path to liblapack.so.3gf
Added proper path to libatlas.so.3gf
Reworked for requirements.txt rather than setup.py
UNDO "Reworked for requirements.txt rather than setup.py"
Merge branch 'master' of https://github.com/ToonTimbermont/heroku-buildpack-python