title: Sitefinity fails to initialize with error: The type initializer for 'Telerik.Sitefinity.Security.SecurityManager' threw an exception
body: <p>As the title reads, I'm trying to run a Sitefinity project with Visual Studio 2015. </p>
  
  <p>On initialization, the little gear icons break and I'm presented with this woefully vague error message:</p>
  
  <p><code>The type initializer for 'Telerik.Sitefinity.Security.SecurityManager' threw an exception.</code></p>
  
  <p>My machine seems to be the only one experiencing this. My google-fu has thus far failed me. I've given full access to all users on my system to no avail. I'm tearing my hair out here. </p>