Added deepcopying of prototypes in spawner. Resolves #565.
Added deepcopying of prototypes in spawner. Resolves #565.

feend78/evennia,ypwalter/evennia,mrkulk/text-world,feend78/evennia,mrkulk/text-world,TheTypoMaster/evennia,jamesbeebop/evennia,titeuf87/evennia,TheTypoMaster/evennia,mrkulk/text-world,ergodicbreak/evennia,ypwalter/evennia,emergebtc/evennia,shollen/evennia,ergodicbreak/evennia,emergebtc/evennia,jamesbeebop/evennia,ergodicbreak/evennia,feend78/evennia,mrkulk/text-world,shollen/evennia,feend78/evennia,emergebtc/evennia,jamesbeebop/evennia,TheTypoMaster/evennia,titeuf87/evennia,titeuf87/evennia,ypwalter/evennia,titeuf87/evennia