Dependencies can be unstable with Django extensions

[RichardForshaw]

The setup instructions are good but I have just found that they break when one module which others depend on is upgraded. E.g. Django 1.8 came out recently, and django-nose doesn't support it, so I was presented with an unfriendly stack trace :(

I suggest that instead of doing a big 'pip install A B C D E...' we store a requirements.txt file in a repo (maybe this one?) which has package versions which are know to play together nicely and install the dev environment from that.

There are also python 'bundling' tools out there (including pip) that can do this.