Revert "Now using .NET 4.5, latest Razor, and MVC5. Windows Server 2003 no longer supported."

This reverts commit 070ce8765d68c88d0b72ba322dba9735480e7c27.
Revert "Updated nuspec files"

This reverts commit 44151b627638b75d787a1b4518aa3e1d7fd8ba43.
Revert "Fix AssemblyVersion to 3.0.0.1"

This reverts commit d7481a4488452339c6e923ead9ca122335852a01.