kes Make WritePartAfterJob the default so that the last DVD part

kes  Make WritePartAfterJob the default so that the last DVD part
     always gets written to the DVD by default.
kes  Add additional error messages in migration.
kes  Suppress redundant error messages in migration (possibly more to do).
kes  Apply Martin's fix (updated to 1.39) that takes into account
     run storage overrides in the Director status display.
kes  Implement, but turn off the submitted code that sets the EOT
     model on FreeBSD machines. Turning on this code is too risky at
     this point in the development.