Added MapContext parameter to getEditingService because it could be necessary for some editing provider.Modify all provider factory classes.
Fixed EllipseEditingProvider and added FilledEllipseEditingProvider
Fixed warning.
Changed keys of parameters.
Clean up code.
Changed references to drawingstatus objects.
Added createLine(Point p1, Point p2) method to EditingProviderServices.Code refactor to use new method.
Moved initialization of variables at providers.Changed keys of options by i18n keys at polyline provider.
Implemented drawing status of ellipse. Now the two axis of ellipse are drawn.
Implemented ellipse provider.