deluge: Make starting/stopping daemon safer
deluge: Make starting/stopping daemon safer

- Match the daemon using uid, name and a pidfile for a safer match.

- Make start process idempotent.

harry-7/Plinth,harry-7/Plinth,jvalleroy/plinth-debian,freedomboxtwh/Plinth,kkampardi/Plinth,kkampardi/Plinth,vignanl/Plinth,freedomboxtwh/Plinth,harry-7/Plinth,harry-7/Plinth,jvalleroy/plinth-debian,freedomboxtwh/Plinth,kkampardi/Plinth,kkampardi/Plinth,freedomboxtwh/Plinth,vignanl/Plinth,freedomboxtwh/Plinth,kkampardi/Plinth,jvalleroy/plinth-debian,vignanl/Plinth,jvalleroy/plinth-debian,vignanl/Plinth,vignanl/Plinth,harry-7/Plinth,jvalleroy/plinth-debian