EXFAT to make_bootable.sh, prepare.Lion.sh and MLTools fixes
Created originally on Bitbucket by 600dplus (scrax)
Was already merged in Bitbucket before import, marked as merged by the import user
Source changeset not longer availableat the time of import. Commit listwill look empty
Here some fixes to prepare.Lion.sh reported in the issue tracker and also exfat support to make_bootable.sh