changing RUR to RUB in old accounts file

[Alexey]

Hi!

I opened a bug #516660.

On Thu, 2008-02-14 at 12:20 -0500, Derek Atkins wrote:
> Could you please file a bug report in bugzilla?  The issue is that
> the currency migration ignore the fact that sometimes currency settings
> are saved in the data file.  So when we migrate a currency we also
> need to handle migrating the saved currency state.
> 
> Thanks!
> 
> -derek
>