BTT: Added user guide
o Added in new btt/doc directory w/ Makefile.
o Added in btt/doc/btt.tex: First pass at a User Guide for btt.
o Fixed usage for btt (missing -A in the usage).
o Bumped version of btt to reflect this document.
o Cleaned up a leftover debug entry
Note: The document does /not/ have the charts intended in the final
copy yet. Hasn't even gone through a spelling & grammar & consistency
check yet.
But it's a start...
Signed-off-by: Alan D. Brunelle <Alan.Brunelle@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>