updates for Django v1.5 compatibility

django-localflavor is no longer part of core since v1.5 and needs to be installed separately.

`pip install django-localflavor`

`INSTALLED_APPS = (
    # ...
    'localflavor',
)`

django.conf.urls.defaults no longer exists.

django cannot find `parceltone.django.apps.*` unless `apps` folder includes `__init__.py` and that is not included after `setup.py install` unless `parcelton.django.apps` is added to packages in `setup.py`