Adding Past Meetings feature for partner sites

[jaeyk]

Bay Area co-organizers (Jaren, Nick, and I) have been working with the Berkeley Institute of Data Science (BIDS) to write a blog post for them. We received the following advice from Marsha Fenner the BIDS communication manager. I think that the recommendation is worth considering.

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I'd recommend having/presenting an archive of "Past Meetings" on this site, so that each year's event has a unique URL, for future reference of content, speakers, links, etc. This becomes a useful reference, and also allows newcomers to find out how you've organized past events.