Python packages

Added python-packages folder, with all dependencies.  Updated manage.py to add these packages to the path.

There's a total hack in the filer code (it had a circular reference) to get things to run.  Whatever.

Website still doesn't work, but at least the server starts:
![image](https://f.cloud.github.com/assets/4072455/981238/57726a7a-0751-11e3-867a-022c1f005de9.png)
![image](https://f.cloud.github.com/assets/4072455/981239/5da2d6d2-0751-11e3-8474-6d8d2b1240e7.png)