Fix layers not properly hidden in HTML5 games.

Started implementing unit tests for GDJS.

Author: 4ian

.gitignore

@@ -16,10 +16,11 @@
 /Binaries/.embuild
 /Binaries/.embuild-debug
 /Binaries/Releases/*.exe
-/Binaries/Releases/*.7z
-/Binaries/Releases/*.tar.bz2
-/Binaries/Releases/*.tar.lzma
-/Binaries/Releases/*.zip
+/Binaries/Releases/**/*.7z
+/Binaries/Releases/**/*.tar.bz2
+/Binaries/Releases/**/*.tar.lzma
+/Binaries/Releases/**/*.zip
+/Binaries/Releases/**/*.deb
 /WebIDE
 *.depend
 *.layout
@@ -50,3 +51,4 @@
 /Binaries/Output/WebIDE/libGD.raw.js
 /WebIDE
 !/GDCpp/scripts/bcp.exe
+/GDJS/tests/node_modules

GDJS/Runtime/layer.js

@@ -18,12 +18,12 @@
  * @namespace gdjs
  * @constructor
  */
-gdjs.Layer = function(name, runtimeScene)
+gdjs.Layer = function(layerData, runtimeScene)
 {
-    this._name = name;
+    this._name = layerData.name;
     this._cameraRotation = 0;
     this._zoomFactor = 1;
-    this._hidden = false;
+    this._hidden = !layerData.visibility;
     this._pixiRenderer = runtimeScene.getPIXIRenderer();
     this._pixiContainer = new PIXI.DisplayObjectContainer(); //The container of the layer
     this._cameraX = runtimeScene.getGame().getDefaultWidth()/2;
@@ -32,6 +32,7 @@ gdjs.Layer = function(name, runtimeScene)
     this._defaultHeight = runtimeScene.getGame().getDefaultHeight();
 
     runtimeScene.getPIXIContainer().addChild(this._pixiContainer);
+    this.show(!this._hidden);
 };
 
 /**