[MERGE] Add __eq__ and __ne__ methods to Repository objects

[Andrew Bennetts]

Robert Collins wrote:
> On Mon, 2007-08-06 at 01:32 -0400, Martin Pool wrote:
[...]
> 
> So I'd like to get this patch backed out, and ask that it be either
> discussed further, or not done using __eq__. Given we freeze tomorrow,
> backing out *now* seems like a precaution to me.

Fair enough.  What's the best way to do that?

In the meantime, I'll rework the patch to use a method other than __eq__.

-Andrew.