### Next: 13
 BUG-4: Duration is borked and comes out as -1 day under jobs (windows created jobs ONLY)
 BUG-6: add a new file (e.g. touch an image in the import dir), and keep_dir[<key>] has missing key
 BUG-7: thumbnail orientation issues (see latest image from my phone - of laptop)
 BUG-8: cascading failure jobs are needed
BUG-10: gen*details will stop if no change to top-level dir, but not look in subdirs
BUG-11: Ai ref img jobs are looping, needs fix
BUG-13: new thumbnail code does not work on linux