[Lcdproc] serialVFD: update & bugfix

[Stefan Herdler]

Hi
> patch applied and committed to CVS with one little change (due to the changed 
> bignum API).
>   
Thanks for that, I must have overlooked it in the diff.
> Please test.
>   
I had tested the patch on the recent CVS-version already before sending 
it. But I had not tested the bignum-function because I made no changes 
on it.
Today I have installed a clean LCDproc from CVS and everything is 
working fine (including the bigclock ;-) ).

Regards,
Stefan