Release: Litium 5.4.1 - critical security update for MVC projects

Litium 5.4.1 - important update for all customers on MVC sites. 

Litium Accelerator 5.4.1 - compatibility with Litium 5.4.1 and some bug fixes

Litium 5 is distributed through NuGet. Read more on how to install the Litium NuGet-feed.