Front

The goal of this PR is to display useful informations to the player about the game.

Initial setup:
```
git fetch origin
git checkout -b front origin/front
./manage.py syncdb
./manage.py runserver
```

You can now visit http://localhost:8000/admin, log yourself in using the credentials you entered during `syncdb`, and create a new Game and a player associated with your user account and the previously created game.

For this PR, we'll be interested in the following pages:

* http://localhost:8000/game/1/wallstreet
* http://localhost:8000/game/1/corporations
* http://localhost:8000/game/1/players

We want them to display the datas as described in https://github.com/Neamar/corporate/blob/front/thoughts.md#wall-street.

To do so, you can update the `website` app. I created the URL condifg, so you just need to load the datas you require from `website/views.py:wallstreet` and build the template file.
Don't bother changing the `order` and `addorder` functions, although i recommend reading them to understand how to retrieve the game and pass it along to the templates.

The other functions are just stubs for now ;)