[keycloak-dev] callback event when realm is cached

[Bill Burke]

There is a new callback event

CachedRealmModel.RealmCachedEvent

Whenever a realm is cached, this event is fired off.  Each cached 
RealmModel instance will can be typecasted to CachedRealmModel which 
will allow developers to cache additional things along with the realm.  
This will be very useful for providers that want to do some 
initialization to speed up processing.