re #102, re #96: limit number of zoom levels for the overview map; default values for minRatio (4) and maxRatio (32) seem to provide better default behaviour.  Still some work to do for tile maps
re #102, re #96: limit number of zoom levels for the overview map; default values for minRatio (4) and maxRatio (32) seem to provide better default behaviour.  Still some work to do for tile maps

asir6/FusionLab,asir6/FusionLab,asir6/FusionLab,asir6/FusionLab