sort github repositories by stargazers_count

At [user info page](http://www.v2ex.com/member/Livid), default api sort by the repository by full_name, I think sort by stargazers_count is better.
api support sort by created, updated, pushed, full_name, see http://developer.github.com/v3/repos/#list-user-repositories, I think sort by updated also ok, just change line 72 like this 
`response = urlfetch.fetch("https://api.github.com/users/" + one.github + "/repos?sort=updated")`