Fix grid.clearControls issue

dist/preview release/gui/babylon.gui.d.ts

@@ -1,6 +1,6 @@
 /*Babylon.js GUI*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 declare module BABYLON.GUI {
 }
 declare module BABYLON.GUI {

dist/preview release/gui/babylon.gui.module.d.ts

@@ -1,6 +1,6 @@
 /*Babylon.js GUI*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 
 declare module 'babylonjs-gui' {
     export * from "babylonjs-gui/2D";
@@ -3053,7 +3053,7 @@ declare module 'babylonjs-gui/3D/materials/fluentMaterial' {
 
 /*Babylon.js GUI*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 declare module BABYLON.GUI {
 }
 declare module BABYLON.GUI {

dist/preview release/inspector/babylon.inspector.d.ts

@@ -1,6 +1,6 @@
 /*Babylon.js Inspector*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 declare module INSPECTOR {
 }
 declare module INSPECTOR {

dist/preview release/inspector/babylon.inspector.module.d.ts

@@ -1,6 +1,6 @@
 /*Babylon.js Inspector*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 
 declare module 'babylonjs-inspector' {
     export * from "babylonjs-inspector/inspector";
@@ -31,7 +31,7 @@ declare module 'babylonjs-inspector/components/propertyChangedEvent' {
 
 /*Babylon.js Inspector*/
 // Dependencies for this module:
-//   ../../../../Tools/gulp/babylonjs
+//   ../../../../Tools/Gulp/babylonjs
 declare module INSPECTOR {
 }
 declare module INSPECTOR {

dist/preview release/viewer/babylon.viewer.d.ts

@@ -4,8 +4,8 @@
 declare module "babylonjs-loaders"{ export=BABYLON;}
 // Generated by dts-bundle v0.7.3
 // Dependencies for this module:
-//   ../../../../../Tools/gulp/babylonjs
-//   ../../../../../Tools/gulp/babylonjs-loaders
+//   ../../../../../Tools/Gulp/babylonjs
+//   ../../../../../Tools/Gulp/babylonjs-loaders
 declare module BabylonViewer {
     /**
         * BabylonJS Viewer

dist/preview release/viewer/babylon.viewer.module.d.ts

@@ -5,8 +5,8 @@ declare module "babylonjs-loaders"{ export=BABYLON;}
 
 // Generated by dts-bundle v0.7.3
 // Dependencies for this module:
-//   ../../../../../Tools/gulp/babylonjs
-//   ../../../../../Tools/gulp/babylonjs-loaders
+//   ../../../../../Tools/Gulp/babylonjs
+//   ../../../../../Tools/Gulp/babylonjs-loaders
 
 declare module 'babylonjs-viewer' {
     import { mapperManager } from 'babylonjs-viewer/configuration/mappers';

gui/src/2D/controls/container.ts

@@ -164,7 +164,7 @@ export class Container extends Control {
      * @returns the current container
      */
     public clearControls(): Container {
-        let children = this._children.slice();
+        let children = this.children.slice();
 
         for (var child of children) {
             this.removeControl(child);