MSVC_Net2008/filelist.am: Fix Dist'ed Files
MSVC_Net2008/filelist.am: Fix Dist'ed Files

gtk-demo.vcproj was renamed to gtkmm3-demo.vcproj, fix this here.

	* MSVC_Net2008/filelist.am: Fix distribution of files due to rename
	  of a project file.

johne53/MB3Gtkmm,johne53/MB3Gtkmm,GNOME/gtkmm,GNOME/gtkmm,GNOME/gtkmm,johne53/MB3Gtkmm,GNOME/gtkmm