Removed code with arbitrary magic numbers and attempted to make it so that the scrolling refresh
Removed code with arbitrary magic numbers and attempted to make it so that the scrolling refresh

would tend to snap back to be more responsive whenever it gets caught up processing messages.
Reduced maximum latency from 1 second to 0.7 seconds.

gmartin7/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,ermshiperete/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,ermshiperete/libpalaso