Added 64 bit build to Visual Studio 2010 Express solution and deleted Visual Studio 2012 dlls.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rhugin@359 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Final modifications for 2 architecture package using Visual Studio 2010 Express.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rhugin@360 edb9625f-4e0d-4859-8d74-9fd3b1da38cb