Revision 702

As I felt dissapointed by getting no sound out of ags me just checked out revision 702 where there drum was more or less usable.

So I really believe that there's a problem with setting absolute buffer sizes with alsa resulting in a ugly hack as work-around.

But you shouldn't take everything for worse because you'll get error reporting from playing sounds. How ever this is your chance to know what's going wrong with ags