Editor: Fog signal clean up.

editor/index.html

@@ -254,8 +254,8 @@
 				signals.objectChanged.add( saveState );
 				signals.objectRemoved.add( saveState );
 				signals.materialChanged.add( saveState );
+				signals.sceneFogChanged.add( saveState );
 				signals.sceneGraphChanged.add( saveState );
-				signals.fogChanged.add( saveState );
 				signals.scriptChanged.add( saveState );
 				signals.historyChanged.add( saveState );
 

editor/js/Editor.js

@@ -47,6 +47,7 @@ var Editor = function () {
 		spaceChanged: new Signal(),
 		rendererChanged: new Signal(),
 
+		sceneFogChanged: new Signal(),
 		sceneGraphChanged: new Signal(),
 
 		cameraChanged: new Signal(),
@@ -69,8 +70,6 @@ var Editor = function () {
 		scriptChanged: new Signal(),
 		scriptRemoved: new Signal(),
 
-		fogChanged: new Signal(),
-
 		windowResize: new Signal(),
 
 		showGridChanged: new Signal(),

editor/js/Sidebar.Scene.js

@@ -99,7 +99,7 @@ Sidebar.Scene = function ( editor ) {
 
 	function onFogChanged() {
 
-		signals.fogChanged.dispatch(
+		signals.sceneFogChanged.dispatch(
 			fogType.getValue(),
 			fogColor.getHexValue(),
 			fogNear.getValue(),

editor/js/Viewport.js

@@ -492,7 +492,7 @@ var Viewport = function ( editor ) {
 
 	var currentFogType = null;
 
-	signals.fogChanged.add( function ( fogType, fogColor, fogNear, fogFar, fogDensity ) {
+	signals.sceneFogChanged.add( function ( fogType, fogColor, fogNear, fogFar, fogDensity ) {
 
 		if ( currentFogType !== fogType ) {