Collaborators

Hi Miki,

I still am struggling with the collaborators piece - to me the added code looks like I think it should look and I've been tweaking it for hours now trying to figure out exactly what is going on - but it is still a mystery.

If you can take a look and again nudge me in the right direction that would be great. I'll also try the Office Hours tonight so I'm not stuck all weekend. 

-K