Avoid unnecessary closed + reopened messages

Don't show messages like:

X closed this topic 15 hours ago.
X reopened this topic 15 hours ago.

Because that's not interesting; nothing really happened. Instead, when someone clicks Close and then Reopen soon again, show no messages about that.

The same goes for Deleted + Restored and other combinations like that.

If however there're many days (?) between closed-reopened, then that's a bit interesting, and good to know. E.g. if someone visited the topic, it was 404 Not Found, and then it's back again: then, "topic deleted 7 days ago .... restored yesterday", now that's interesting. So show.