more detailed setup steps

Getting it up and running was a PITA for me. ;-) Since there was `env.py.example`, I was messing around with `local.py.example` and `base.py`. I got lots of weird errors along the way - "something about ROOT_URLCONF", "no adapter defined for South" and "no module named wklejorg" to name a few. ;) This guide should be more helpful for non-djangists. If it has any defects, please name them so I can improve it further.