Fix: Don't delete buried or deleted jobs if lifetime is set to unlimited
Add tests
Fix indentation
Merge branch 'glen-84-patch-1'

# By Glen (2) and glen-84 (1)
# Via Bas Kamer (1) and Glen (1)
* glen-84-patch-1:
  Fix indentation
  Add tests
  Fix: Don't delete buried or deleted jobs if lifetime is set to unlimited

Conflicts:
	src/SlmQueueDoctrine/Queue/DoctrineQueue.php