Include django contrib in stack 505

The list for ```HIDE_IN_STACKTRACE``` is rather long now and it has to be manually edited if modules are added/removed to Django. We could potentially programmatically loop through the modules of ```django```.
What is the purpose of this loop? Why don't just write apps and shortcuts explicitly for any version of django?

Or may be it is better to support regular expressions in the `HIDE_IN_STACKTRACES` list?