0.2.0 release

This merge request does some final cleaning up before the 0.2.0 release.

• I removed all the files in /etc/web since we ended up switching to using reports generated by the html library.
• Updated the installation Makefile to install Keras and xgboost as well as sklearn. I had to bump the versions of numpy, etc. in order to accommodate this:
  • numpy -> 1.14.6
  • scipy -> 0.18.1
  • matplotlib -> 1.5.1
  • scikit-learn -> 0.20.3
• Update failing doctest due to spacing of numpy array string representation.
• Update gitlab-ci.yml to accomodate new Makefile.
• Bump version to 0.2.0.