[21] QDSlider = QSlider with double values, top toolbar for terrain has first radio button & sliders, initMode in future just one, showMode now just for terrain,  alt + left click mouse to increase/decrease brush radius, deleted some qdebuges, local variables for shaping in MapView, squad to circle brush in changeTerrain, vertex brush is near finish, IMPORTANT for changeTerrain need speed 10 : fixing in future