* Removed .bin ext for x86test and memtest86+, with it does not work.
(http://syslinux.zytor.com/wiki/index.php/Common_Problems)
* Add url for x86test and memtest86+
* Re-add license for memtest86+
* Adjusted Makefile, some cleanups
Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>