* Such as WebConverger (webc-35.1.iso)
* Also fix non installation of Syslinux if Alt-E (dual UEFI/BIOS) is set
* Also update README and AppVeyor script
* Microsoft removed the diskcopy.dll that contained the MS-DOS floppy image
Not a big loss, since we have FreeDOS... ;)
* Closes#545
* Also apply a long overdue refactoring for boot and target types
* Also update the README to add an icon