Brand new Grunt task - creates each core library as its own file and a combined phaser.js.

New build script now cleanly splits Phaser, Pixi and p2 so they are each UMD wrapped and each available in the global scope (now more requireJS friendly!).
phaser-no-libs.js allows you to use your own version of p2.js or pixi.js with Phaser. Warning: This is totally unsupported. If you hit bugs, you fix them yourself.
Fixed silly instanceof bug in game objects (sorry guys).

tasks/banner.txt

@@ -0,0 +1,28 @@
+/**
+* @author       Richard Davey <rich@photonstorm.com>
+* @copyright    2014 Photon Storm Ltd.
+* @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
+*
+* @overview
+*
+* Phaser - http://www.phaser.io
+*
+* v<%= version %> "Aes Sedai" - Built at: <%= buildDate %>
+*
+* By Richard Davey http://www.photonstorm.com @photonstorm
+*
+* Phaser is a fun, free and fast 2D game framework for making HTML5 games 
+* for desktop and mobile web browsers, supporting Canvas and WebGL rendering.
+*
+* Phaser uses Pixi.js for rendering, created by Mat Groves http://matgroves.com @Doormat23
+* Phaser uses p2.js for physics, created by Stefan Hedman https://github.com/schteppe/p2.js @schteppe
+*
+* Many thanks to Adam Saltsman (@ADAMATOMIC) for releasing Flixel, from which both Phaser
+* and my love of framework development originate.
+*
+* Follow Phaser development progress at http://phaser.io
+*
+* "If you want your children to be intelligent,  read them fairy tales."
+* "If you want them to be more intelligent, read them more fairy tales."
+*                                                     -- Albert Einstein
+*/