http://blog.miniasp.com/post/2013/06/24/ASPNET-MVC-4-IIS-runAllManagedModulesForAllRequests-ExtensionlessUrlHandler.aspx
http://www.iis.net/learn/get-started/introduction-to-iis/iis-modules-overview
http://stackoverflow.com/questions/11048863/modules-runallmanagedmodulesforallrequests-true-meaning
http://www.hanselman.com/blog/BackToBasicsDynamicImageGenerationASPNETControllersRoutingIHttpHandlersAndRunAllManagedModulesForAllRequests.aspx