Version 1112 was commited by steve on 2009-07-29 19:24:44 +0100 (Wed, 29 Jul 2009) Improve (perhaps even completely fix) the behaviour at the edge of a map. The bug was that if you were close to the edge you could get strange behaviour such as disapearing map when zooming in really close and tool tips not appearing when hovering over roads. This fixes the subdivision width and height calculations to be more correct at lower zooms, especially when the full width is an odd number. I was going to do more than this, but it seems to work well as it is.