[Suggestion] Take a snapshot of the sessions table

[Brandon D]

I'd like to be able to see what was so popular that caused a huge spike in traffic on my board. I think IPB should take a 'snapshot' of the sessions table, save it off in another table whenever the amount of users online breaks the 'most users ever online'. This way admins can view who was on and what they were viewing at the time the record was broke.