Patch for QPE application

Hi Opie developers,

I have uploaded in CVS changes to the appearance app to select the default
font. However, for this to work a change to qpeapplication needs to be made.
Since this affects libqpe, I have attached a patch containing my proposed
changes. It seems to work and not break binary compatibility, but could
developers please review/test. If everyone is comfortable with it, I will
apply to CVS.

Thanks,
Dan