Recover django import patterns, url ImportError

Recently,  This has support for django 1.6. but i see this:

```
try:
    from django.conf.urls import patterns, url
except ImportError:  # deprecated since Django 1.4
    from django.conf.urls import patterns, url  # noqa
```

I do not quite understand, and I now use django is 1.2.5, I must use the past:

```
from django.conf.urls.defaults import patterns, url
```