Readonly Mode
Prevents your users from changing stuff when they really shouldn't.
Description
Readonly Mode helps you prevent loss of data because of authors changing it in times when they shouldn't (but just wouldn't listen). For example while sychronizing databases or committing important structural changes. Please don't forget to disable it before you go on vacation.
Also, it brings it's own event filter that denies all events from firing as long as readonly mode is in effect.
