revise contribution guidelines, graduate 3.0 from dev

CONTRIBUTING.md

@@ -4,7 +4,7 @@ Please keep the [issue tracker](http://github.com/hakimel/reveal.js/issues) limi
 
 
 ### Personal Support
-If you have personal support or setup questions the best place to ask those are  [StackOverflow](http://stackoverflow.com/questions/tagged/reveal.js).
+If you have personal support or setup questions the best place to ask those are [StackOverflow](http://stackoverflow.com/questions/tagged/reveal.js).
 
 
 ### Bug Reports
@@ -17,4 +17,3 @@ When reporting a bug make sure to include information about which browser and op
   - Single-quoted strings
 - Should be made towards the **dev branch**
 - Should be submitted from a feature/topic branch (not your master)
-- Should not include the minified **reveal.min.js** or **reveal.min.css** files

package.json

 {
   "name": "reveal.js",
-  "version": "3.0.0-dev",
+  "version": "3.0.0",
   "description": "The HTML Presentation Framework",
   "homepage": "http://lab.hakim.se/reveal-js",
   "subdomain": "revealjs",