* Disk Drive ID fixup for FAT32 was already available in ms-sys with option -p
* modified code to add FAT16 as well as FAT32 support as well as minor fixes
* reverts previous patch write_fat_32_br() and write_fat_16_br()
* fixed issue #16 - crash during format on XP
* fixed issue #17 - non bootable drives when created in XP
* for more info on the problem and fix, see the issues above