Groups examples and some boolean checks corrected

src/core/Game.js

@@ -31,7 +31,7 @@ Phaser.Game = function (width, height, renderer, parent, state, transparent, ant
 	renderer = renderer || Phaser.AUTO;
 	parent = parent || '';
 	state = state || null;
-	transparent = transparent || false;
+	if (typeof transparent == 'undefined') { transparent = false; }
 	antialias = typeof antialias === 'undefined' ? true : antialias;
 
 	/**

src/input/InputHandler.js

@@ -75,7 +75,7 @@ Phaser.InputHandler.prototype = {
 	start: function (priority, useHandCursor) {
 
 		priority = priority || 0;
-		useHandCursor = useHandCursor || false;
+		if (typeof useHandCursor == 'undefined') { useHandCursor = false; }
 
         //  Turning on
         if (this.enabled == false)