more detailed info / recommentation about virtualisation technologies (HVM vs. LXC)
improved filtering of results (loading distributions, versions, ...)
paging on the list of results (stupid LIMIT / OFFSET, but seems to work well enough)
a short explanation of the summary at the front page
removed obsolete TODO item (the timeout was implemented by a TimeoutKiller in the client)
removed obsolete TODO item (update-views.sh refreshes the MVs)