"Streaming RethinkDB Results" box has some problems

[mlucy]

• 90% of the results wrap to two lines, but just barely; we should consider tweaking things so they all fit on one line.
• At least on my screen, it renders the new result before bumping the other results down, so there's a fraction of a second where two chunks of text are overlayed over each other and it looks ugly.
• We should consider putting a pause button on it, I personally find it hard to read the copy while it's scrolling and it would make it feel more interactive.
• We should consider making it scroll smoothly. (I find the jerking really annoying, whereas the smoothly moving graph further down the page doesn't bother me at all.)