Add more badges to README

Author: mikehaertl

README.md

@@ -2,6 +2,11 @@ php-tmpfile
 ===========
 
 [![Build Status](https://secure.travis-ci.org/mikehaertl/php-tmpfile.png)](http://travis-ci.org/mikehaertl/php-tmpfile)
+[![Latest Stable Version](https://poser.pugx.org/mikehaertl/php-tmpfile/v/stable.svg)](https://packagist.org/packages/mikehaertl/php-tmpfile)
+[![Total Downloads](https://poser.pugx.org/mikehaertl/php-tmpfile/downloads.svg)](https://packagist.org/packages/mikehaertl/php-tmpfile)
+[![Latest Unstable Version](https://poser.pugx.org/mikehaertl/php-tmpfile/v/unstable.svg)](https://packagist.org/packages/mikehaertl/php-tmpfile)
+[![HHVM Status](http://hhvm.h4cc.de/badge/yiisoft/yii2-dev.png)](http://hhvm.h4cc.de/package/mikehaertl/php-tmpfile)
+[![License](https://poser.pugx.org/mikehaertl/php-tmpfile/license.svg)](https://packagist.org/packages/mikehaertl/php-tmpfile)
 
 A convenience class for temporary files.