Migrate to Python 3

[timsutton]

Needs to be still tested on Windows, and probably more code paths in general.

[tiagofassoni]

Hey there!

First of all, thanks so much for the project. It's being super useful.

I have just tested the project on Windows, and the python script had just one issue: in line 131, logdata is a string, so it doesn't have a decode object.

The powershell script, however, is not working, unfortunately.

I am not contributing any code right now because I don't know if the decode is necessary on Linux.

If it isn't, I'd be glad to make a new release.