* Refactor update-version
* Moved pyinst, update-version and icon into devscripts
* pyinst doesn't bump version anymore
* Merge pyinst and pyinst32. Usage: `pyinst.py [32|64]`
* Add mutagen as requirement
* Remove make_win and related files
From now on, the line
from __future__ import unicode_literals
should be contained in every single Python file lest we run into any more 2.x/3.x issues.
Going forward, we're likely to develop on 3.x only and would likely miss subtle bugs otherwise.