release v0.3.2

[laraPPr]

I was wondering why v0.3.2 is not on PyPI yet and why it was not tagged as a release?

[maxscheurer]

We did some refactoring that broke pip upload, so I'll need to merge #44 first and then make a new release. Feature-wise, there are no changes in versions >0.3.1. Which problems are caused by not having 0.3.2 available on pip, how can I help? ☺️

[boegel]

What about v0.3.3a0, is that production-ready, or should we still prefer v0.3.1 for now?

We are trying to install v0.3.2 using the source tarball obtained from GitHub, but then we get errors because cppe/python_iface doesn't exist...

[maxscheurer]

I will try to mint a new release in the following days. Sorry for the problems, please use the 0.3.1 version for the time being. The newer versions will just have refactored build system and no new features/fixes anyways.