Make evennia -i block until process is closed. Fixes #803.
Make evennia -i block until process is closed. Fixes #803.

ergodicbreak/evennia,feend78/evennia,titeuf87/evennia,shollen/evennia,feend78/evennia,jamesbeebop/evennia,feend78/evennia,titeuf87/evennia,ergodicbreak/evennia,emergebtc/evennia,titeuf87/evennia,titeuf87/evennia,shollen/evennia,jamesbeebop/evennia,ergodicbreak/evennia,feend78/evennia,emergebtc/evennia,jamesbeebop/evennia,emergebtc/evennia