Moved FxCop artifacts, Sandcastle build script, and shared key into Build folder to reduce the crowding in the top-level folder.
Moved FxCop artifacts, Sandcastle build script, and shared key into Build folder
to reduce the crowding in the top-level folder.

jango2015/Autofac.Mvc,dparra0007/Autofac.Mvc,autofac/Autofac.Mvc