Set key and keyCode for keyReleased.

Author: Chris Hallberg

lib/p5.js

@@ -1,4 +1,4 @@
-/*! p5.js v0.3.7 September 20, 2014 */
+/*! p5.js v0.3.7 September 24, 2014 */
 var shim = function (require) {
     window.requestDraw = function () {
       return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback, element) {
@@ -2974,6 +2974,12 @@ var inputkeyboard = function (require, core) {
       var keyReleased = this.keyReleased || window.keyReleased;
       this._setProperty('isKeyPressed', false);
       this._setProperty('keyIsPressed', false);
+      var key = String.fromCharCode(e.which);
+      if (!key) {
+        key = e.which;
+      }
+      this._setProperty('key', key);
+      this._setProperty('keyCode', e.which);
       if (typeof keyReleased === 'function') {
         keyReleased(e);
       }