Fix building of the MonoDevelop.FSharp project in VS2012

Fixes the following:

On windows, after running configure.bat and opening the generated .sln with VS2012, we get this error message:

"Cannot open F# project 'C:\Gustavo\Forks\fsharpbinding\monodevelop\MonoDevelop.FSharpBinding\MonoDevelop.FSharp.windows.fsproj'. 

This project uses wildcards in item specification: 

'..\dependencies\AspNetMvc4\*' for item type 'Mvc4Files'