[haiku] Website conferences updated

I finally got around to updating the website conferences - I added
both SCaLE 7x and FOSDEM 2009 which are coming up in February.

I also put back the "Conferences" block in the upper right of the
website and it should show the updated info shortly (the anonymous
page contents are cached and updated on a cron).

BTW, despite how it seems, the website submission form does work - it
currently just submits them to an email address that isn't checked
very often. I will try again to fix this soon! Please continue to
submit them as we do rely on that information when we (finally) go to
add them.

Let me know if I missed anything.

- Urias

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