PointProxy added to allow for easy setting of force and velocity. More p2 tests done. World update done.

build/config.php

@@ -179,6 +179,7 @@
     <script src="$path/src/utils/Color.js"></script>
 
     <script src="$path/src/physics/World.js"></script>
+    <script src="$path/src/physics/PointProxy.js"></script>
     <script src="$path/src/physics/Body.js"></script>
 
     <script src="$path/src/particles/Particles.js"></script>