Fix for bug 564380

[Geert Janssens]

On Thursday 18 February 2010, Mike Evans wrote:
> On Tuesday February 16 2010 15:42:28 Mike Evans wrote:
> > Displaying payments on a printed bill doubled the bill instead of
> >  subtracting the payment.
> > I've added to patch to fix this bug in bugzilla.
> >
> > Mike E
> 
> I forgot to update fancy and easy invoices so here are the patches to do
>  just that.
> 
Verified and applied. Thanks a lot !

One little question: would you mind to run the diff for future patches from 
the project's root directory (meaning the directory that contains src, util, 
accounts, and so on) ?

This make applying the patches somewhat easier.

Geert