kes Print the Volume purged message only for real jobs to keep

kes  Print the Volume purged message only for real jobs to keep
     from cluttering up the daemon messages.
kes  Lock the tape drive door while Bacula is using the device.
kes  Add back the 'No Jobs running' message to FD and SD status because
     my regression script depends on it, and I'm too lazy to change the
     scripts.
kes  Start using structure assignments (not too happy about it ...).
kes  Fix a bug in the tools Makefile that broke on Solaris.
kes  Unload any autochanger drive during a 'release' command.