removed Line object and replaced it with Polyline, added "abstract" class Path that implements functionalities for both Polyline and Polygon classes
removed Line object and replaced it with Polyline, added "abstract" class Path that implements functionalities for both Polyline and Polygon classes

crs4/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon