kes Apply the three patches from Richard Mortimer.

kes  Apply the three patches from Richard Mortimer.
     bacula-reposition.patch, bacula-tape-reopen.patch, and
     bacula-eod.patch. This corrects tape positioning on older devices,
     and also a problem with btape.
kes  Apply fix from bug report #696 where writing to a FIFO does not
     work due to a dumb typo.
kes  Unlock the tape door before the file descriptor is released. This
     should fix lots of somewhat subtle failures when using an autochanger.

git-svn-id: https://bacula.svn.sourceforge.net/svnroot/bacula/trunk@3551 91ce42f0-d328-0410-95d8-f526ca767f89