dsc-trg-dq: Use the local 'q' variable in queue_run()
dsc-trg-dq: A bit more error checking required
dsc-trg-q: More error checking in dsc-trg-q too.
dsc-trg-dq: Redirect 'ls' errors to /dev/null

We just want an empty list and that will determine whether
to quit or not.
dsc-trg-dq: Conditionally remove the source directory

We may continue to add to it after the initial execution of dsc-trg-dq
and it's first queue run.
dsc-trg.conf: Set BLUTIT_OPTS to -v

Verbose mode is helpful when diagnosing problems and it goes to stderr
so won't cross the streams (stdout) ;)
backup: Optionally force a full system backup

Level zero dump
dsc-trg-q: Bug fix - check the log file to confirm rip

Return codes don't appear to be very high on the makemkv team's agentda :(
blutit: Lower the default number of deviations from the mean

2 has proven to be too much.