django-cms 2.4 compatible

Had to get the blog running an an early version of django-cms 2.4. Since the way language is handled way changed quite a bit, there is a lot of stuff I had to rewrite/change.

This will run on the 2.4 beta, but not on any older Version. And it's definitely not a finished port, but I thought I'd share. I hope you have some use for the code.