* Fixed issue causing Keyboard.justPressed to always fire (thanks stemkoski)

* Added Keyboard.addKey() which creates a new Phaser.Key object that can be polled for updates, pressed states, etc. See the 2 new examples showing use.

examples/input/keyboard justpressed.php

@@ -0,0 +1,47 @@
+<?php
+    $title = "Keyboard justPressed";
+    require('../head.php');
+?>
+
+<script type="text/javascript">
+
+(function () {
+
+    var game = new Phaser.Game(800, 600, Phaser.AUTO, '', { preload: preload, create: create, update: update });
+
+    var phaser;
+
+    function preload() {
+
+        game.load.image('phaser', 'assets/sprites/phaser-dude.png');
+
+    }
+
+    function create() {
+
+        game.stage.backgroundColor = '#736357';
+
+        phaser = game.add.sprite(300, 300, 'phaser');
+
+    }
+
+    function update() {
+
+        if (game.input.keyboard.justPressed(Phaser.Keyboard.UP))
+        {
+            phaser.y--;
+        }
+
+        if (game.input.keyboard.justPressed(Phaser.Keyboard.DOWN))
+        {
+            phaser.y++;
+        }
+
+    }
+
+})();
+</script>
+
+<?php
+    require('../foot.php');
+?>