Add PureMVC to the site

index.html

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 						<a href="labs/architecture-examples/duel/www/" data-source="https://bitbucket.org/mckamey/duel/wiki/Home" data-content="DUEL is a dual-side templating engine using HTML for layout and 100% pure JavaScript as the binding language. The same views may be executed both directly in the browser (client-side template) and on the server (server-side template).">DUEL</a>
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+						<a href="labs/architecture-examples/puremvc/" data-source="http://puremvc.github.com" data-content="PureMVC is a lightweight framework for creating applications based upon the classic Model-View-Controller design meta-pattern.">PureMVC</a>
+					</li>
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 						<a href="labs/architecture-examples/fidel/" data-source="https://github.com/jgallen23/fidel" data-content="Fidel is a micro-framework for building widgets, modules and plugins. It resembles the controller in Spine.js and could be considered a controller library. Having not heavily needed models and routing in some of the single-page applications the author built, he found a library focusing on controller logic more useful.">Fidel</a>
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