Added namespace to PointerLockControls. Fixes #2591.

examples/js/controls/PointerLockControls.js

@@ -1,4 +1,8 @@
-var PointerLockControls = function ( camera ) {
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+THREE.PointerLockControls = function ( camera ) {
 
 	var scope = this;
 

examples/misc_controls_pointerlock.html

@@ -189,7 +189,7 @@
 				light.position.set( -1, - 0.5, -1 );
 				scene.add( light );
 
-				controls = new PointerLockControls( camera );
+				controls = new THREE.PointerLockControls( camera );
 				scene.add( controls.getObject() );
 
 				ray = new THREE.Ray();