Bug 1084552: Display non-deleted parent direcotries of deleted files in ...

...diff viewer.
On Mon, Oct 20, 2014 at 02:39:21AM -0700, Mathieu Agopian wrote:
>Why the use of OrderedDict instead of SortedDict? FYI, we can't 
>use that in production, as we haven't switched to py27 yet.

Because `SortedDict` is deprecated and slated to be removed, and 
it seemed like it would be easier to remove it while I was 
touching that code rather than waiting until we upgrade Django. 
I thought we were on 2.7 on prod already. If that's not the 
case, I'll just revert that change.