time except countdown only

[GoogleCodeExporter]

not a problem but 2 requests!

- to be able to add/remove time on the fly.. 
in cases we see that the food needs less (else it will get burned) or more time 
... just to avoid doing everything for 0.... stop/re-calculate/set time


- to be able to use it as a simple stop watch too (with pause option too) so we 
can track how much time we need for a progress and have it to our records for 
the next time..

ok we all have a watch in our house (even the pc watch) but is nice to be able 
to set and forget 

Original issue reported on code.google.com by [email protected] on 12 Sep 2012 at 10:34