python3 support (and Storm)

[pieterdavid]

From this Storm issue it seems that a python3 port is in the plans, but not really any time soon (and the project looks rather inactive, with the last release in 2010).
As far as I can see, Storm is the only thing that prevents SAMADhi's python code to work with python3. Should we look into moving to an alternative ORM library?
From a quick search, SQLAlchemy is the reference python ORM but rather heavy, and peewee a smaller and simpler alternative, with an API that is very similar to Storm - therefore I would try that first (the models seem translate almost one-to-one, but I have only changed about half of the code so far, so to be checked).