Added fixes to make sure the tickerhandler loop doesn't delete from its own subscription dict while inside the loop - even if that deletion happens inside a callback.
Added fixes to make sure the tickerhandler loop doesn't delete from its own subscription dict while inside the loop - even if that deletion happens inside a callback.

ergodicbreak/evennia,feend78/evennia,ergodicbreak/evennia,ergodicbreak/evennia,feend78/evennia,titeuf87/evennia,jamesbeebop/evennia,titeuf87/evennia,jamesbeebop/evennia,titeuf87/evennia,titeuf87/evennia,feend78/evennia,jamesbeebop/evennia,feend78/evennia