Added setup to avoid copying code

### Need:
A as a developer
I want to be able to use 3rd party code in my application without having to copying code

### Solution:
 - [x] Add a setup.py file making the superbulk view importable `from django_superbulk import superbulk`

### Prerequisites:
 - [How to setup a python module](http://docs.python.org/2/distutils/introduction.html#distutils-simple-example)
 - [Example of other setups of other projects](https://github.com/toastdriven/django-tastypie)