Add minified version + change version number

Author: afshinm

component.json

@@ -1,8 +1,8 @@
 {
   "name": "intro.js",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "A better way for new feature introduction and step-by-step users guide for your website and project.",
-  "keywords": ["demo", "intro"],
+  "keywords": ["demo", "intro", "introduction"],
   "homepage": "http://usablica.github.com/intro.js/",
   "author": "Afshin Mehrabani",
   "main": ["intro.js","introjs.css"]