Merge branch '704' into 'devel_12.2.x'

failure error is more specific

See merge request !664

service/src/main/java/lcsb/mapviewer/services/impl/ProjectService.java

@@ -679,7 +679,7 @@ public class ProjectService implements IProjectService {
     Integer zoomLevels = generator.computeZoomLevels(topModel);
     if (zoomLevels > maxZoomLevels) {
       throw new InvalidInputDataExecption(
-          "Map " + topModel.getName() + " too big. You can change the max size of map in configuration.");
+          "Map " + topModel.getName() + " too big. You can change the max number of map zoom levels in configuration.");
     }
     topModel.setZoomLevels(zoomLevels);
     topModel.setTileSize(MapGenerator.TILE_SIZE);