Allow listing junior programmers who want to be shown public

[andrzejkrzywda]

The first, very basic implementation can be:

• create a model called JuniorDeveloper (or just Developer)
• create a controller with just one action: juniors/index
• create a view which just takes Junior.all and displays name

For the beginning we don't have to have a way of adding people via UI. We can do it from the Rails console- for those people who want it. For the first release it should be enough. Later we can add nicer UI for that - maybe an admin panel?

[hkopij]

I'll take care of that

[andrzejkrzywda]

Closed by #13