Adrian Englhardt

Results 2 issues of Adrian Englhardt

This PR refactors the changepoint package and makes it compatible with python version 2.7-3.7. This PR also includes the proposed fixes from PR #2 and #4.

The paper link in the readme fowards to a broken URL: `http://people.csail.mit.edu/beenkim/papers/KIM2016NIPS_MMD.pdf` fowards to `https://beenkim.github.iopapers/KIM2016NIPS_MMD.pdf` (note the missing `/` in `.iopapers`).