Lots of work on Audio & Physics engine:

-Added new 3D stream player node
-Added ability for Area to capture sound from streams
-Added small features in physics to be able to properly guess distance to areas for sound
-Fixed 3D CollisionObject so shapes are added the same as in 2D, directly from children
-Fixed KinematicBody API to make it the same as 2D.

editor/plugins/spatial_editor_plugin.h

@@ -83,6 +83,7 @@ class SpatialEditorViewport : public Control {
 		VIEW_ENVIRONMENT,
 		VIEW_ORTHOGONAL,
 		VIEW_AUDIO_LISTENER,
+		VIEW_AUDIO_DOPPLER,
 		VIEW_GIZMOS,
 		VIEW_INFORMATION,
 		VIEW_DISPLAY_NORMAL,