Get some statistics

[odinho]

It would be nice to get some initial statistics. Maybe showing who is contributing how much. I know internally that people like to look at these lists. philipj would come out high.

He also said though, that he does lots and lots of small commits, so maybe we should also count changed lines in another highscore-table?

At least, getting something initial here would be cool. Making the site a bit more interesting/helpful.

[mathiasbynens]

A leaderboard sounds cool :)