Changes to make it somewhat work on cms 2.4 and django 1.5

I've grabbed some old commits from another pull request and worked a little more over it, but right now for my needs I'll end up creating another, simpler blogging plugin (since I'll not need translations and some other stuff).

For now I believe the only thing that's still not working here is all the translation related code, that end up causing the need of changing simple-translations aswell.

Hope this helps, just wanted to give back on the little effort I've made with this.