GIS monkey patching breaks on Django 1.4

Hello,

I tried to use django-oursql with Django 1.4 but I got the traceback bellow. Trying to use the new DATABASES['default']['ENGINE'] instead of DATABASE_ENGINE, breaks even worse. I removed the monkey patch and it seams to be working now. Have a look at the patch and let me know if its okay, or if it breaks anything in the long run.

<pre>
Traceback (most recent call last):
  File "wsgi_gevent.py", line 32, in <module>
    got_request_exception.connect(exception_printer)
  File "/vps/container/venv/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 74, in connect
    if settings.DEBUG:
  File "/vps/container/venv/lib/python2.7/site-packages/django/utils/functional.py", line 184, in inner
    self._setup()
  File "/vps/container/venv/lib/python2.7/site-packages/django/conf/__init__.py", line 42, in _setup
    self._wrapped = Settings(settings_module)
  File "/vps/container/venv/lib/python2.7/site-packages/django/conf/__init__.py", line 93, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "/vps/container/venv/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/vps/container/app/project/__init__.py", line 1, in <module>
    import project.signals
  File "/vps/container/app/project/signals.py", line 24, in <module>
    from project.web.auth.models import Profile
  File "/vps/container/app/project/web/auth/models.py", line 1, in <module>
    from django.db import models
  File "/vps/container/venv/lib/python2.7/site-packages/django/db/__init__.py", line 40, in <module>
    backend = load_backend(connection.settings_dict['ENGINE'])
  File "/vps/container/venv/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/vps/container/venv/lib/python2.7/site-packages/django/db/utils.py", line 92, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/vps/container/venv/lib/python2.7/site-packages/django/db/utils.py", line 24, in load_backend
    return import_module('.base', backend_name)
  File "/vps/container/venv/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/vps/container/venv/lib/python2.7/site-packages/mysql_oursql/standard/base.py", line 46, in <module>
    if settings.DATABASE_ENGINE.startswith('mysql'):
  File "/vps/container/venv/lib/python2.7/site-packages/django/utils/functional.py", line 185, in inner
    return func(self._wrapped, *args)
AttributeError: 'Settings' object has no attribute 'DATABASE_ENGINE'
</pre>

Gabriel