Merge pull request #60 from rbowen/patch-1

Remove dead link
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 *   **[Apache Shiro Support for Mule](http://blogs.mulesoft.com/dev/mule-dev/apache-shiro-support-for-mule/)** by Dan Diephouse on 10 January 2011.
 
-*   **[Apache Shiro on Google AppEngine](http://www.gdevelop.com/blog/2010/12/apache-shiro-on-appengine)** by Trung on 13 December 2010.
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 *   **[Apache Shiro tags for JSF - Securing Your JSF Pages](http://techbeats.deluan.com/apache-shiro-tags-for-jsffacelets)** by Deluan Quintão on 1 November 2010.
 
 *   **Shiro DevNexus 2009 Presentation** by Jeremy Haile: ([PDF](assets/images/articles/Ki-DevNexus-2009.pdf?version=1&modificationDate=1246602947000)) ([Keynote](assets/images/articles/Ki-DevNexus-2009.key.zip?version=1&modificationDate=1246602947000)) ([Powerpoint](assets/images/articles/Ki-DevNexus-2009.ppt.zip?version=1&modificationDate=1246602947000))