add support for setting mount options of async, noatime, nodevmtine and softdep.
add noauto if 'mount' was not requested.
add entry for /proc (with noauto)
Display fragment size and block size on the correct line.
Ask for numeric fragment size (not # fragments/block).
Show one unused partition when editing disklabel.
Zap all fields when a partition is made FS_UNSED.
Tweak some menu texts (a space at the end of a line causes a line break!).
Simplify code that displays output from commands - curses is requied to not DTRT
with CR/LF sequences, I need to revert libcurses :-(
