auto focus repl input

[kadirpekel]

implement auto focus to reply input on window load

[gryzzly]

looks like a bit complicated thing, (to focus on contenteditable) that I will try to implement tomorrow. (also, it looks like the focus is there, it just doesn't show the caret).

it currently works in webkit browsers

[NV]

https://github.com/nko/nv/blob/master/public/js/main.js#L164
It should does the trick, but in fact it doesn't. Trying to understand why.